American business directories /
compiled by Marjorie D. Veith, Commercial intelligence unit.
APA Citation
United States. Bureau of Foreign and Domestic Commerce., Veith, M. D. (1942). American business directories. Washington.
MLA Citation
United States. Bureau of Foreign and Domestic Commerce, and Marjorie D Veith. American Business Directories. Washington, 1942.
Warning: These citations may not always be complete (especially for serials).