APA (7th ed.) Citation

Holbrook, J., & Barrett, P. (1976). A closer look at elephants. Hamish Hamilton.

Chicago Style (17th ed.) Citation

Holbrook, John, and Peter Barrett. A Closer Look at Elephants. London: Hamish Hamilton, 1976.

MLA (9th ed.) Citation

Holbrook, John, and Peter Barrett. A Closer Look at Elephants. Hamish Hamilton, 1976.