APA (7th ed.) Citation

Hume, R., & Wallace, I. (1990). Birds by character: Britain & Europe : the fieldguide to jizz identification (1st pub.). Macmillan.

Chicago Style (17th ed.) Citation

Hume, Rob, and Ian Wallace. Birds by Character: Britain & Europe : The Fieldguide to Jizz Identification. 1st pub. London: Macmillan, 1990.

MLA (9th ed.) Citation

Hume, Rob, and Ian Wallace. Birds by Character: Britain & Europe : The Fieldguide to Jizz Identification. 1st pub. Macmillan, 1990.