APA (7th ed.) Citation

Gruber, F. (1970). Zane Grey: A biography. World Publ.

Chicago Style (17th ed.) Citation

Gruber, Frank. Zane Grey: A Biography. New York, NY: World Publ, 1970.

MLA (9th ed.) Citation

Gruber, Frank. Zane Grey: A Biography. World Publ, 1970.

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