George, J. D. (1979). Marine life: An illustrated encyclopedia of invertebrates in the sea. John Wiley and Sons.
Čikaški stil citiranja (17. izdanje)George, J. David. Marine Life: An Illustrated Encyclopedia of Invertebrates in the Sea. John Wiley and Sons, 1979.
MLA način citiranja (9. izdanje)George, J. David. Marine Life: An Illustrated Encyclopedia of Invertebrates in the Sea. John Wiley and Sons, 1979.
Upozorenje: Ovi citati možda nisu uvijek 100% točni.