Marshall, A. J. (1974). Textbook of zoology invertebrates (7.).
Chicago Edition CitationMarshall, A J. Textbook of Zoology Invertebrates. 7. English Language Book Society, England, 1974.
MLA Edition CitationMarshall, A J. Textbook of Zoology Invertebrates. 7. 1974.
Warning: These citations may not always be 100% accurate.