Freeman, W. H., & Bracegirdle, B. (1971). Atlas of invertebrate structure. Heinemann education books.
Čikaški stil citiranjaFreeman, W. H., i Brian Bracegirdle. Atlas of Invertebrate Structure. London: Heinemann education books, 1971.
MLA način citiranjaFreeman, W. H., i Brian Bracegirdle. Atlas of Invertebrate Structure. Heinemann education books, 1971.
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