George, J. D. (1979). Marine life: An illustrated encyclopedia of invertebrates in the sea. John Wiley and Sons.
Chicago (17e ed.) BronvermeldingGeorge, J. David. Marine Life: An Illustrated Encyclopedia of Invertebrates in the Sea. John Wiley and Sons, 1979.
MLA (9e ed.) BronvermeldingGeorge, J. David. Marine Life: An Illustrated Encyclopedia of Invertebrates in the Sea. John Wiley and Sons, 1979.
Let op: Deze citaties zijn niet altijd 100% accuraat.