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A Directory of Information Resources in the United States: Physical Sciences, Biological Sciences, Engineering

Annual Report of the National Research Council

Proceedings of the National Academy of Sciences of the United States of America

Publications of the National Academy of Sciences of the United States of America (1915-1926)

Proceedings of the Annual Meeting of the Highway Research Board

Report

Annual Report

Highway Research Board

Publication Index - Highway Research Board

Bulletin of the National Research Council