Cita APA

Abbott, R. T., & Wagner, R. J. L. (1978). Standard catalog of shells (3a. ed.). Greenville, Del: American Malacologists.

Citación estilo Chicago

Abbott, Robert Tucker, y Robert J. L. Wagner. Standard Catalog of Shells. 3a. ed. Greenville, Del: American Malacologists, 1978.

Cita MLA

Abbott, Robert Tucker, y Robert J. L. Wagner. Standard Catalog of Shells. 3a. ed. Greenville, Del: American Malacologists, 1978.