APA (7th ed.) Citation

Ries, H. (1903). The clays of the United States east of the Mississippi river. Govt. print. off.

Chicago Style (17th ed.) Citation

Ries, Heinrich. The Clays of the United States East of the Mississippi River. Washington: Govt. print. off, 1903.

MLA (9th ed.) Citation

Ries, Heinrich. The Clays of the United States East of the Mississippi River. Govt. print. off, 1903.