Dyfyniad APA

State of the world's forests 2001. (2001). State of the world's forests 2001. Rome, Italy: FAO.

Dyfyniad Arddull Chicago

State of the world's forests 2001. State of the World's Forests 2001. Rome, Italy: FAO, 2001.

Dyfyniad MLA

State of the world's forests 2001. State of the World's Forests 2001. Rome, Italy: FAO, 2001.

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