Cita APA (7a ed.)

Rosenberg, G. (1993). The encyclopedia of seashells. Robert Hale.

Cita Chicago Style (17a ed.)

Rosenberg, Gary. The Encyclopedia of Seashells. London: Robert Hale, 1993.

Cita MLA (9a ed.)

Rosenberg, Gary. The Encyclopedia of Seashells. Robert Hale, 1993.