APA (7th ed.) Citation

Edwards, J. D. (1917). Effusion method of determining gas density. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Edwards, Junius David. Effusion Method of Determining Gas Density. [Washington?]: U.S. Government Printing Office, 1917.

MLA (9th ed.) Citation

Edwards, Junius David. Effusion Method of Determining Gas Density. U.S. Government Printing Office, 1917.