Saul, M. (1974). Shells: An illustrated guide to a timeless and fascinating world. London: Country Life.
Chicago Stili AlıntıSaul, Mary. Shells: An Illustrated Guide to a Timeless and Fascinating World. London: Country Life, 1974.
MLA AlıntıSaul, Mary. Shells: An Illustrated Guide to a Timeless and Fascinating World. London: Country Life, 1974.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..