Labor force in Mindanao: Services 1960, 1970, 1985. Presidential Advisory Council on Public Works and Community Development.
Chicago-referens (17:e uppl.)Labor Force in Mindanao: Services 1960, 1970, 1985. Quezon City: Presidential Advisory Council on Public Works and Community Development.
MLA-referens (8:e uppl.)Labor Force in Mindanao: Services 1960, 1970, 1985. Presidential Advisory Council on Public Works and Community Development.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.