APA (7th ed.) Citation

Thrapp, D. L. (1988). Encyclopedia of frontier biography. Arthur H. Clark Co..

Chicago Style (17th ed.) Citation

Thrapp, Dan L. Encyclopedia of Frontier Biography. Glendale, Calif.: Arthur H. Clark Co., 1988.

MLA (8th ed.) Citation

Thrapp, Dan L. Encyclopedia of Frontier Biography. Arthur H. Clark Co., 1988.

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