APA aipamena

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

Chicago Style aipamena

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

MLA aipamena

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

Kontuz: berrikusi erreferentzia hauek erabili aurretik.