Directory of commercial testing and college research laboratories /
compiled by Ann E. Rapuzzi under the direction of A. S. McAllister, assistant director for commercial standardization.

APA Citation

United States. National Bureau of Standards., Rapuzzi, A. Elizabeth. (1942). Directory of commercial testing and college research laboratories. Washington, D.C.: U.S. Dept. of Commerce, Bureau of Standards .

MLA Citation

United States. National Bureau of Standards, and Ann Elizabeth Rapuzzi. Directory of Commercial Testing And College Research Laboratories. Washington, D.C.: U.S. Dept. of Commerce, Bureau of Standards , 1942.

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