APA
Food and Agricultural Organization, Food and Agricultural Organization, . (1975). Forest tree seed directory 1975. Rome: Food and Agriculture Organization.
Chicago
Food and Agricultural Organization, Food and Agricultural Organization, . 1975. Forest tree seed directory 1975. Rome: Food and Agriculture Organization.
Harvard
Food and Agricultural Organization, Food and Agricultural Organization, . (1975). Forest tree seed directory 1975. Rome: Food and Agriculture Organization.
MLA
Food and Agricultural Organization, Food and Agricultural Organization, . Forest tree seed directory 1975. Rome: Food and Agriculture Organization. 1975.
