APA (7th ed.) Citation

Caine, B. (2008). Friendship: A history. Equinox.

Chicago Style (17th ed.) Citation

Caine, Barbara. Friendship: A History. London ; Oakville, CT: Equinox, 2008.

MLA (9th ed.) Citation

Caine, Barbara. Friendship: A History. Equinox, 2008.