Dyfyniad APA

United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Benzil), & Quarrie, J. (1992). Earth Summit, 1992. Regency Press.

Dyfyniad Arddull Chicago

United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Benzil), and Joyce Quarrie. Earth Summit, 1992. London: Regency Press, 1992.

Dyfyniad MLA

United Nations Conference on Environment and Development (1992 : Rio de Janeiro, Benzil), and Joyce Quarrie. Earth Summit, 1992. Regency Press, 1992.

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