Dyfyniad APA

(1990). International Handbook Of National Parks And Nature Reserves Edited B Craig W. Allin. Greenwood Press.

Dyfyniad Arddull Chicago

International Handbook Of National Parks And Nature Reserves Edited B Craig W. Allin. Greenwood Press, 1990.

Dyfyniad MLA

International Handbook Of National Parks And Nature Reserves Edited B Craig W. Allin. Greenwood Press, 1990.

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