Red. Encyclopaedia, L. (1951). Encyclopaedia Britannica - A New Survey of Universal Knowledge Volume 12 (Hydrozoa to Jeremy, Epistle of). Encyclopaedia Britannica, LTD.
Chicago Style (17th ed.) CitationRed. Encyclopaedia, LTD. Encyclopaedia Britannica - A New Survey of Universal Knowledge Volume 12 (Hydrozoa to Jeremy, Epistle of). Encyclopaedia Britannica, LTD, 1951.
MLA (8th ed.) CitationRed. Encyclopaedia, LTD. Encyclopaedia Britannica - A New Survey of Universal Knowledge Volume 12 (Hydrozoa to Jeremy, Epistle of). Encyclopaedia Britannica, LTD, 1951.
Warning: These citations may not always be 100% accurate.