(1988). Second inter-regional seminar on population: Report and country papers, Manila (Philippines) 8-9 August 1998. ILO.
Chicago-referens (17:e uppl.)Second Inter-regional Seminar on Population: Report and Country Papers, Manila (Philippines) 8-9 August 1998. Geneva: ILO, 1988.
MLA-referens (9:e uppl.)Second Inter-regional Seminar on Population: Report and Country Papers, Manila (Philippines) 8-9 August 1998. ILO, 1988.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.