Cita APA (7a ed.)

Hubendick, B. (1961). Studies on Venezuelan Planorbidae. Elanders boktr..

Cita Chicago Style (17a ed.)

Hubendick, Bengt. Studies on Venezuelan Planorbidae. Göteborg: Elanders boktr., 1961.

Cita MLA (8a ed.)

Hubendick, Bengt. Studies on Venezuelan Planorbidae. Elanders boktr., 1961.