28459 20191212123648.0 9789242548204 CH-GeUNH eng WHO Psychological first aid : guide for field workers Geneva: WHO, 2012 English FIRST AID STRESS (PHYSIOLOGY) PSYCHOLOGICAL ASPECTS MANUALS/HANDBOOKS MEDICAL AND HEALTH PERSONNEL fre Les premiers secours psychologiques : guide pour les acteurs de terrain. OHCHR HRE HRE/ESCR/(6)R/10 HRE Collection BOOK Teaching materials, manuals