ICAO, IMO, UNDP, UNIDO, UNRWA, WHO, WIPO and WMO have no such manual.
L &apos; OACI, l &apos; OMI, le PNUD, l &apos; ONUDI, l &apos; UNRWA, l &apos; OMS, l &apos; OMPI et l &apos; OMM ne disposent pas d &apos; un tel manuel.