Roper, C. F. E., & Sweeney, M. J. (1978). A catalog of the type-specimens of Recent Cephalopoda in the National Museum of Natural History. Smithsonian Inst. Press.
Chicago-Zitierstil (17. Ausg.)Roper, Clyde F. E., und Michael James Sweeney. A Catalog of the Type-specimens of Recent Cephalopoda in the National Museum of Natural History. Washington, DC: Smithsonian Inst. Press, 1978.
MLA-Zitierstil (9. Ausg.)Roper, Clyde F. E., und Michael James Sweeney. A Catalog of the Type-specimens of Recent Cephalopoda in the National Museum of Natural History. Smithsonian Inst. Press, 1978.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.