APA (7th ed.) Citation

Allen, R. (1927). Potash in Poland. U.S. Government Printing Office.

Chicago Style (17th ed.) Citation

Allen, Ron. Potash in Poland. [Washington?]: U.S. Government Printing Office, 1927.

MLA (9th ed.) Citation

Allen, Ron. Potash in Poland. U.S. Government Printing Office, 1927.

Warning: These citations may not always be 100% accurate.