APA (7e ed.) Bronvermelding

Collins, J. (1992). Social skills training and the professional helper. Wiley.

Chicago (17e ed.) Bronvermelding

Collins, John. Social Skills Training and the Professional Helper. Chichester: Wiley, 1992.

MLA (9e ed.) Bronvermelding

Collins, John. Social Skills Training and the Professional Helper. Wiley, 1992.

Let op: Deze citaties zijn niet altijd 100% accuraat.