APA

Dance S. P., . (1976). The world's shells: a guide for collectors. New York: McGraw-Hill.

Chicago

Dance S Peter, . 1976. The world's shells: a guide for collectors. New York: McGraw-Hill.

Harvard

Dance S. P., . (1976). The world's shells: a guide for collectors. New York: McGraw-Hill.

MLA

Dance S Peter, . The world's shells: a guide for collectors. New York: McGraw-Hill. 1976.