Cita APA

World Health Organization. (2011). Psychological first aid: Guide for field workers. World Health Organization.

Citación estilo Chicago

World Health Organization. Psychological First Aid: Guide for Field Workers. Geneva, Switzerland: World Health Organization, 2011.

Cita MLA

World Health Organization. Psychological First Aid: Guide for Field Workers. World Health Organization, 2011.

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