Dyfyniad APA

Dumdum, S. J. Why it is wrong to cut down trees. [anthology].

Dyfyniad Arddull Chicago

Dumdum, Simeon Jr. Why It Is Wrong to Cut Down Trees. [anthology].

Dyfyniad MLA

Dumdum, Simeon Jr. Why It Is Wrong to Cut Down Trees. [anthology].

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