APA (7th ed.) Citation

Kruuk, H. (1964). Predators and anti-predator behaviour of the black-headed gull (Larus ridibundus L.). E. J. Brill.

Chicago Style (17th ed.) Citation

Kruuk, H. Predators and Anti-predator Behaviour of the Black-headed Gull (Larus Ridibundus L.). Leiden: E. J. Brill, 1964.

MLA (8th ed.) Citation

Kruuk, H. Predators and Anti-predator Behaviour of the Black-headed Gull (Larus Ridibundus L.). E. J. Brill, 1964.