APA (7th ed.) Citation

Porter, J. M. (1926). Technology of manufacture of gypsum products. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Porter, J. M. Technology of Manufacture of Gypsum Products. [Washington?]: U.S. Government Printing Office, 1926.

MLA (9th ed.) Citation

Porter, J. M. Technology of Manufacture of Gypsum Products. U.S. Government Printing Office, 1926.