(1997). Philippine agenda 21: A national agenda for sustainable development. Philippine Council for Sustainable Development.
Chicago-referens (17:e uppl.)Philippine Agenda 21: A National Agenda for Sustainable Development. Manila: Philippine Council for Sustainable Development, 1997.
MLA-referens (8:e uppl.)Philippine Agenda 21: A National Agenda for Sustainable Development. Philippine Council for Sustainable Development, 1997.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.