Safer, J. F., & Gill, F. M. (1982). Spirals from the sea: An anthropological look at shells. Clarson N. Potter, Inc.
Cita Chicago (17th ed.)Safer, Jane Fearer, i Frances McLaughlin Gill. Spirals from the Sea: An Anthropological Look at Shells. New York, New York: Clarson N. Potter, Inc, 1982.
Cita MLA (9th ed.)Safer, Jane Fearer, i Frances McLaughlin Gill. Spirals from the Sea: An Anthropological Look at Shells. Clarson N. Potter, Inc, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.