APA (7th ed.) Citation

Ovenden, D. (1972). The world's vanishing birds. Foulsham.

Chicago Style (17th ed.) Citation

Ovenden, Denys. The World's Vanishing Birds. London: Foulsham, 1972.

MLA (9th ed.) Citation

Ovenden, Denys. The World's Vanishing Birds. Foulsham, 1972.

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