APA (7th ed.) Citation

Coy, O. C. (1931). The great trek. Powell publishing company.

Chicago Style (17th ed.) Citation

Coy, Owen Cochran. The Great Trek. Los Angeles, San Francisco [etc.]: Powell publishing company, 1931.

MLA (9th ed.) Citation

Coy, Owen Cochran. The Great Trek. Powell publishing company, 1931.