Dyfyniad APA

(2000). International review for environmental strategies. Institute of Global Environmental Strategies (IGES).

Dyfyniad Arddull Chicago

International Review for Environmental Strategies. Kanagawa: Institute of Global Environmental Strategies (IGES), 2000.

Dyfyniad MLA

International Review for Environmental Strategies. Institute of Global Environmental Strategies (IGES), 2000.

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