APA (7th ed.) Citation

Durrell, G. (1964). A zoo in my luggage. Penguin Books.

Chicago Style (17th ed.) Citation

Durrell, Gerald. A Zoo in My Luggage. Harmondsworth, UK: Penguin Books, 1964.

MLA (9th ed.) Citation

Durrell, Gerald. A Zoo in My Luggage. Penguin Books, 1964.