Não informado. (2004). Forest Genetic Resources. Food and Agriculture Organization of the United Nations.
Chicago-Zitierstil (17. Ausg.)Não informado. Forest Genetic Resources. Rome: Food and Agriculture Organization of the United Nations, 2004.
MLA-Zitierstil (8. Ausg.)Não informado. Forest Genetic Resources. Food and Agriculture Organization of the United Nations, 2004.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.