Não informado. (1973). Forest genetic resources information. Food and Agriculture Organization of the United Nations.
Cita Chicago Style (17a ed.)Não informado. Forest Genetic Resources Information. Rome: Food and Agriculture Organization of the United Nations, 1973.
Cita MLA (8a ed.)Não informado. Forest Genetic Resources Information. Food and Agriculture Organization of the United Nations, 1973.
Precaución: Estas citas no son 100% exactas.