APA (7th ed.) Citation

Martin, B. (1987). World Birds. Guinness Superlatives Ltd.

Chicago Style (17th ed.) Citation

Martin, Brian. World Birds. London: Guinness Superlatives Ltd, 1987.

MLA (9th ed.) Citation

Martin, Brian. World Birds. Guinness Superlatives Ltd, 1987.

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