APA (7th ed.) Citation

Boyd, D. (1890). A history: Greeley and the Union Colony of Colorado. Greeley Tribune Press.

Chicago Style (17th ed.) Citation

Boyd, David. A History: Greeley and the Union Colony of Colorado. Greeley, Co.: Greeley Tribune Press, 1890.

MLA (9th ed.) Citation

Boyd, David. A History: Greeley and the Union Colony of Colorado. Greeley Tribune Press, 1890.