APA
Food and agriculture organization of the United Nations, . (1967). The Soil: How to Improve the Soil/ (Acc: 49). Rome: Institute Africain pour le development economique et social.
Chicago
Food and agriculture organization of the United Nations, . 1967. The Soil: How to Improve the Soil/ (Acc: 49). Rome: Institute Africain pour le development economique et social.
Harvard
Food and agriculture organization of the United Nations, . (1967). The Soil: How to Improve the Soil/ (Acc: 49). Rome: Institute Africain pour le development economique et social.
MLA
Food and agriculture organization of the United Nations, . The Soil: How to Improve the Soil/ (Acc: 49). Rome: Institute Africain pour le development economique et social. 1967.
