Pay roll voucher #26 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Southern Division, for the month of July, 1857 approved by F. Shanly, chief engineer and Francis A. Doyle (copy), July 28, 1857

Pay roll voucher #26 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Southern Division, for the month of July, 1857 approved by F. Shanly, chief engineer and Francis A. Doyle (copy), July 28, 1857.

Pay roll voucher #25 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Northern Division, for the month of July, 1857 approved by F. Shanly, chief engineer and W. G. Thompson (copy), July 30, 1857

Pay roll voucher #25 from the Engineer Department of Port Dalhousie and Thorold Railway Extension, for the Northern Division, for the month of July, 1857 approved by F. Shanly, chief engineer and W. G. Thompson (copy), July 30, 1857.

Pay roll voucher #30 from the Engineer Department of the Welland Railway for the Southern Division for the month of August, Aug. 31, 1857

Pay roll voucher #30 from the Engineer Department of the Welland Railway for the Southern Division for the month of August, Aug. 31, 1857.

Pay roll voucher #33 from the Engineer Department of the Welland Railway for the Southern Division

Pay roll voucher #33 from the Engineer Department of the Welland Railway for the Southern Division for the month of September. (2 copies) [one is signed on the 30th and one on the 31st], Sept. 31, 1857.

Pay roll voucher #32 from the Engineer Department of the Welland Railway for the Northern Division for the month of September

Pay roll voucher #32 from the Engineer Department of the Welland Railway for the Northern Division for the month of September, Oct. 2, 1857.

Pay roll voucher #36 from the Engineer Department of the Welland Railway for the Northern Division for the month of October

Pay roll voucher #36 from the Engineer Department of the Welland Railway for the Northern Division for the month of October, Nov. 3, 1857.

Pay roll voucher #37 from the Engineer Department of the Welland Railway for the Southern Division for the month of October

Pay roll voucher #37 from the Engineer Department of the Welland Railway for the Southern Division for the month of October, Nov. 6, 1857.

Pay roll voucher #43 from the Engineer Department of the Welland Railway for the Northern Division for the month of December

Pay roll voucher #43 from the Engineer Department of the Welland Railway for the Northern Division for the month of December, Dec. 30, 1857.

Pay roll voucher #44 from the Engineer Department of the Welland Railway for the Southern Division for the month of December

Pay roll voucher #44 from the Engineer Department of the Welland Railway for the Southern Division for the month of December, Dec. 31, 1857.

Incapacidades y días de labor perdidos en trabajadores con obesidad

Tesis (Maestría en Salud Pública, Especialidad en Salud en el Trabajo) UANL.

Memoria que el secretario de Estado y del Despacho de Guerra y Marina Gral. de division Felipe B. Berriozábal presenta al Congreso de la Unión y comprende de 19 de marzo de 1896 a 30 de junio de 1899 : Anexos y documentos.

UANL

Life and labor, or characteristics of men of industry, culture and genius

UANL

The Republic of México in 1876; a polítical and ethnographical division of the population, character, habits, costumes an vocations of its in habitans

UANL

The Federal Empowerment Zone and Enterprise Community Program: Outcome on Labor Income.

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