APA (7th ed.) Citation

Erwin, P. (1998). Friendship in childhood and adolescence / Phil Erwin. Routledge.

Chicago Style (17th ed.) Citation

Erwin, Phil. Friendship in Childhood and Adolescence / Phil Erwin. London: Routledge, 1998.

MLA (9th ed.) Citation

Erwin, Phil. Friendship in Childhood and Adolescence / Phil Erwin. Routledge, 1998.

Warning: These citations may not always be 100% accurate.