Dyfyniad APA

(1997). Philippine agenda 21: A national agenda for sustainable development. Philippine Council for Sustainable Development.

Dyfyniad Arddull Chicago

Philippine Agenda 21: A National Agenda for Sustainable Development. Manila: Philippine Council for Sustainable Development, 1997.

Dyfyniad MLA

Philippine Agenda 21: A National Agenda for Sustainable Development. Philippine Council for Sustainable Development, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.