FAO. (1989). FAO conservation guide N.21: Role of forestry in combating desertification. Rome: FAO.
Chicago Style citaatFAO. FAO Conservation Guide N.21: Role of Forestry in Combating Desertification. Rome: FAO, 1989.
MLA citatieFAO. FAO Conservation Guide N.21: Role of Forestry in Combating Desertification. Rome: FAO, 1989.
Let op: Deze citaties zijn niet altijd 100% accuraat.