Keen, A. M., & McLean, J. H. (1971). Sea shells of tropical West America: Marine mollusks from Baja California to Peru (2 edición.). Stanford, California: Stanford University Press.
Chicago Style CitationKeen, A. Myra, and James H. McLean. Sea Shells of Tropical West America: Marine Mollusks From Baja California to Peru. 2 edición. Stanford, California: Stanford University Press, 1971.
MLA CitationKeen, A. Myra, and James H. McLean. Sea Shells of Tropical West America: Marine Mollusks From Baja California to Peru. 2 edición. Stanford, California: Stanford University Press, 1971.
Warning: These citations may not always be 100% accurate.