World Health Organization. (2011). Psychological first aid: Guide for field workers. World Health Organization.
Chicago (17e ed.) BronvermeldingWorld Health Organization. Psychological First Aid: Guide for Field Workers. Geneva, Switzerland: World Health Organization, 2011.
MLA (8e ed.) BronvermeldingWorld Health Organization. Psychological First Aid: Guide for Field Workers. World Health Organization, 2011.
Let op: Deze citaties zijn niet altijd 100% accuraat.