APA (7th ed.) Citation

Buff, M., & Buff, C. (1958). Elf Owl. Viking Press.

Chicago Style (17th ed.) Citation

Buff, Mary, and Conrad Buff. Elf Owl. New York: Viking Press, 1958.

MLA (9th ed.) Citation

Buff, Mary, and Conrad Buff. Elf Owl. Viking Press, 1958.