APA (7th ed.) Citation

Eisenberg, J. M., & Old, W. E. (1981). A collector's guide to seashells of the world. McGraw-Hill.

Chicago Style (17th ed.) Citation

Eisenberg, Jerome M., and William E. Old. A Collector's Guide to Seashells of the World. New York: McGraw-Hill, 1981.

MLA (9th ed.) Citation

Eisenberg, Jerome M., and William E. Old. A Collector's Guide to Seashells of the World. McGraw-Hill, 1981.