APA (7th ed.) Citation

Buff, M. M., & Buff, C. (1946). Big tree. the Viking Press.

Chicago Style (17th ed.) Citation

Buff, Mary Marsh, and Conrad Buff. Big Tree. New York: the Viking Press, 1946.

MLA (9th ed.) Citation

Buff, Mary Marsh, and Conrad Buff. Big Tree. the Viking Press, 1946.