APA (7th ed.) Citation

Thrapp, D. L. (1994). Encyclopedia of frontier biography. Arthur H. Clark Co..

Chicago Style (17th ed.) Citation

Thrapp, Dan L. Encyclopedia of Frontier Biography. Spokane, WA: Arthur H. Clark Co., 1994.

MLA (8th ed.) Citation

Thrapp, Dan L. Encyclopedia of Frontier Biography. Arthur H. Clark Co., 1994.

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