Cita APA (7a ed.)

Willmott, P. (1987). Friendship networks and social support. Policy Studies Institute.

Cita Chicago Style (17a ed.)

Willmott, Peter. Friendship Networks and Social Support. London: Policy Studies Institute, 1987.

Cita MLA (9a ed.)

Willmott, Peter. Friendship Networks and Social Support. Policy Studies Institute, 1987.