Não informado. (2004). Forest Genetic Resources. Food and Agriculture Organization of the United Nations.
Chicago-referens (17:e uppl.)Não informado. Forest Genetic Resources. Rome: Food and Agriculture Organization of the United Nations, 2004.
MLA-referens (8:e uppl.)Não informado. Forest Genetic Resources. Food and Agriculture Organization of the United Nations, 2004.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.