APA (7th ed.) Citation

United States. Department of Labor & Wright, C. D. (1893). Phosphate industry of U.S. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

United States. Department of Labor and Carroll D. Wright. Phosphate Industry of U.S. [Washington, D.C.]: U.S. Government Printing Office, 1893.

MLA (9th ed.) Citation

United States. Department of Labor and Carroll D. Wright. Phosphate Industry of U.S. U.S. Government Printing Office, 1893.