APA (7th ed.) Citation

Plummer, W. C., & Ritter, P. O. (1930). Credit extension and causes of failure among Philadelphia grocers. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Plummer, Wilbur Clayton, and Paul O. Ritter. Credit Extension and Causes of Failure Among Philadelphia Grocers. [Washington?]: U.S. Government Printing Office, 1930.

MLA (9th ed.) Citation

Plummer, Wilbur Clayton, and Paul O. Ritter. Credit Extension and Causes of Failure Among Philadelphia Grocers. U.S. Government Printing Office, 1930.