APA-referens

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

Chicago-stil citat

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

MLA-referens

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