APA (7 ম সংস্করণ) উদ্ধৃতি

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

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

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

M.L.A (8 ম সংস্করণ) উদ্ধৃতি

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