Παραπομπή APA

Oldroyd, H. (1964). Natural history of flies. Weidenfield & Nicolson.

Παραπομπή Chicago Style

Oldroyd, Harold. Natural History of Flies. London: Weidenfield & Nicolson, 1964.

Παραπομπή MLA

Oldroyd, Harold. Natural History of Flies. Weidenfield & Nicolson, 1964.