APA (7th ed.) Citation

Buff, M., & Buff, C. (1951). The apple and the arrow. Houghton Mifflin, etc., etc.

Chicago Style (17th ed.) Citation

Buff, Mary, and Conrad Buff. The Apple and the Arrow. Boston: Houghton Mifflin, etc., etc, 1951.

MLA (9th ed.) Citation

Buff, Mary, and Conrad Buff. The Apple and the Arrow. Houghton Mifflin, etc., etc, 1951.