Gramática maya : método teórico práctico /

Mode of access: Internet.

Anuario estadístico, Puerto Rico. Statistical yearbook, Puerto Rico.

Mode of access: Internet.

Report on the census of Porto Rico, 1899.

Published also in Spanish.

Census of Porto Rico, taken under the direction of the War department, U.S.A. Bulletin no. 1-3 [June 11-August 29, 1900]

No. 1. Total population by departments, municipal districts, cities, and wards.-no. 2. Population by age, sex, race, nativity, conjugal condition, and literacy.-no. 3. Citizenship, literacy, and education.

Reseña del estado social, económico e industrial de la isla de Puerto-Rico al tomar posesión de ella los Estados-Unidos /

Mode of access: Internet.

Report on the statistical system of Puerto Rico to the Director of the Budget, Government of Puerto Rico

Mode of access: Internet.

Informe sobre el censo de Puerto Rico, 1899 /

"Teniente coronel J. P. Sanger, inspector-general, director. Henry Gannett, Walter F. Willcox, peritos en estadística. Traducido del inglés por Frank L. Joannini."

Gramática elemental (teórico-práctica) de la lengua castellana.

"Obra aprobada por la Junta Directiva de la Instrucción Pública."

Public education in Puerto Rico,

"Issued by the United States Department of the Interior, Office of Education. Harold L. Ickes is Secretary of the Interior and George F. Zook is Commissioner of Education. Katherine M. Cook ... is chief of the Division of Special Problems."--Verso of t.-p.

The Porto Rico school review. La revista escolar de Puerto Rico.

Mode of access: Internet.

Data pertinent to the establishment of minimum wage rates under the Fair labor standards act for employment newly covered by the amendments of 1966 in educational institutions in Puerto Rico /

"WH67-418."

Decretos estableciendo el régimen autonómico en las islas de Cuba y Puerto Rico.

"Edición oficial"

Don Nicolás Bravo; ó, Clemencia mexicana. Drama en tres actos y en verso fundado en un hecho histórico.

Mode of access: Internet.

Robespierre! drama [histórico] en 3 actos.

"Estrenado ... en el Gran Teatro Hidalgo, el 13 de julio de 1888."

Palabra de honor, ensayo lírico-dramático en un acto y cinco cuadros.

Without the music.