Pratt, H. S. (1951). Manual of the common invertebrate animals. Blakiston.
Chicago Edition CitationPratt, Henery Sherring. Manual of the Common Invertebrate Animals. Philadelphia: Blakiston, 1951.
Cita MLAPratt, Henery Sherring. Manual of the Common Invertebrate Animals. Blakiston, 1951.
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