National apprenticeship and training standards for vending machine mechanics /

Mode of access: Internet.

National apprenticeship standards for plumbing and steamfitting-pipefitting /

Mode of access: Internet.

National apprenticeship and training standards for truck mechanics /

Mode of access: Internet.

National apprenticeship standards for Automotive Service Councils.

Mode of access: Internet.

National apprenticeship and training standards for bricklaying /

Mode of access: Internet.

National apprenticeship and training standards for dental technicians.

Mode of access: Internet.

National pattern standards of apprenticeship and training for electricians /

Mode of access: Internet.

National apprenticeship standards for roofers, damp and waterproof workers /

Mode of access: Internet.

National apprenticeship and training standards for the International Brotherhood of Police Officers for the training of law enforcement officer.

Mode of access: Internet.

Safety standards for elevators, escalators, dumb-waiters and hoists. Rules 214 to 265 inclusive (Effective December 15, 1924) Adopted September 9, 1924.

At head of title: Commonwealth of Pennsylvania. Department of labor and Industry.

Standards yearbook.

"Compiled by the Bureau of Standards."

A.S.T.M. standards on coal and coke.

Mode of access: Internet.

Minimum standards for quality of life /

Mode of access: Internet.

Amendment of the Fair labor standards act.

pt.1.Hearings, Sept.25-Oct.26, 1945.--pt.2.Hearings, Jan.18-21, 1946.

National emission standards study : report : appendix : a report to the Congress of the United States by the Secretary of Health, Education, and Welfare, in compliance with Public Law 90-148 : Clean Air Act, as amended.

Includes bibliographies.