Cita APA (7a ed.)

Bentley, W. A., & Humphreys, W. J. (1962). Snow crystals. Dover.

Cita Chicago Style (17a ed.)

Bentley, W. A., y W. J. Humphreys. Snow Crystals. New York: Dover, 1962.

Cita MLA (8a ed.)

Bentley, W. A., y W. J. Humphreys. Snow Crystals. Dover, 1962.