APA (7th ed.) Citation

Buff, M. M., & Buff, C. (1949). Kobi: A boy of Switzerland (3. print.). Viking Press.

Chicago Style (17th ed.) Citation

Buff, Mary Marsh, and Conrad Buff. Kobi: A Boy of Switzerland. 3. print. New York: Viking Press, 1949.

MLA (9th ed.) Citation

Buff, Mary Marsh, and Conrad Buff. Kobi: A Boy of Switzerland. 3. print. Viking Press, 1949.