APA (7th ed.) Citation

Kruuk, H. (1964). Predators and anti-predator behaviour of the black-headed gull: (Laurus ridibundus l.). Brill.

Chicago Style (17th ed.) Citation

Kruuk, Hans. Predators and Anti-predator Behaviour of the Black-headed Gull: (Laurus Ridibundus L.). Leiden: Brill, 1964.

MLA (9th ed.) Citation

Kruuk, Hans. Predators and Anti-predator Behaviour of the Black-headed Gull: (Laurus Ridibundus L.). Brill, 1964.