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Supplement to National directory of commodity specification,
classified and alphabetical lists and brief descriptions of specifications of national recognition.
Prepared by Paul A. Cooley and Ann E. Rapuzzi under the direction of A.S. McAllister. Issued March 1, 1947.

APA Citation

United States. National Bureau of Standards., Cooley, P. A. (1947). Supplement to National directory of commodity specification: classified and alphabetical lists and brief descriptions of specifications of national recognition. Washington: U.S. Govt. Print. Off..

MLA Citation

United States. National Bureau of Standards, and Paul A Cooley. Supplement to National Directory of Commodity Specification: Classified And Alphabetical Lists And Brief Descriptions of Specifications of National Recognition. Washington: U.S. Govt. Print. Off., 1947.

Warning: These citations may not always be complete (especially for serials).