FAO. (2001). FAO yearbook forest products; 1999; Vol.34(N157). Rome: FAO.
Chicago Style aipamenaFAO. FAO Yearbook Forest Products; 1999; Vol.34(N157). Rome: FAO, 2001.
MLA aipamenaFAO. FAO Yearbook Forest Products; 1999; Vol.34(N157). Rome: FAO, 2001.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.