Freeman, W. H., & Bracegirdle, B. (1971). Atlas of invertebrate structure. Heinemann education books.
Chicago Style aipamenaFreeman, W. H., and Brian Bracegirdle. Atlas of Invertebrate Structure. London: Heinemann education books, 1971.
MLA aipamenaFreeman, W. H., and Brian Bracegirdle. Atlas of Invertebrate Structure. Heinemann education books, 1971.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.