Citazione APA

Freeman, W. H., & Bracegirdle, B. (1971). Atlas of invertebrate structure. Heinemann education books.

Stile di citazione Chicago

Freeman, W. H., e Brian Bracegirdle. Atlas of Invertebrate Structure. London: Heinemann education books, 1971.

Citazione MLA

Freeman, W. H., e Brian Bracegirdle. Atlas of Invertebrate Structure. Heinemann education books, 1971.