Dyfyniad APA

(1994). Economy and ecology in sustainable development. Gramedia Pustaka Utama.

Dyfyniad Arddull Chicago

Economy and Ecology in Sustainable Development. Jakarta: Gramedia Pustaka Utama, 1994.

Dyfyniad MLA

Economy and Ecology in Sustainable Development. Gramedia Pustaka Utama, 1994.

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