Armitage, F., Joustra, P., & Salem , B. B. (1980). Genetic resources of tree species in Arid and Semi-Arid areas: A survey for the improvement of rural living in Latin America, Africa, India and Southwest Asia. Food and Agriculture Organisation of the United Nations.
Παραπομπή σε μορφή Chicago (17η εκδ.)Armitage, F.B, P.A Joustra, και B. Ben Salem. Genetic Resources of Tree Species in Arid and Semi-Arid Areas: A Survey for the Improvement of Rural Living in Latin America, Africa, India and Southwest Asia. Rome: Food and Agriculture Organisation of the United Nations, 1980.
Παραπομπή σε μορφή MLA (9th εκδ.)Armitage, F.B, et al. Genetic Resources of Tree Species in Arid and Semi-Arid Areas: A Survey for the Improvement of Rural Living in Latin America, Africa, India and Southwest Asia. Food and Agriculture Organisation of the United Nations, 1980.