APA (7th ed.) Citation

Oldroyd, H. (1966). Insects and their world (2nd ed.). British Museum (Natural History).

Chicago Style (17th ed.) Citation

Oldroyd, Harold. Insects and Their World. 2nd ed. London: British Museum (Natural History), 1966.

MLA (9th ed.) Citation

Oldroyd, Harold. Insects and Their World. 2nd ed. British Museum (Natural History), 1966.

Warning: These citations may not always be 100% accurate.