APA-referens

Noland, G. (1975). General biology.9th ed (9th ed.). C.V. Mosby.

Chicago-stil citat

Noland, George. General Biology.9th Ed. 9th ed. London: C.V. Mosby, 1975.

MLA-referens

Noland, George. General Biology.9th Ed. 9th ed. C.V. Mosby, 1975.