DeVries, J., & Toenniessen, G. H. (2001). Securing the harvest: Biotechnology, breeding, and seed systems for African crops. CABI Publishing.
Lua i Stíl Chicago (17ú heag.)DeVries, Joseph, agus Gary H. Toenniessen. Securing the Harvest: Biotechnology, Breeding, and Seed Systems for African Crops. Wallingford, UK: CABI Publishing, 2001.
Lua MLA (8ú heag.)DeVries, Joseph, agus Gary H. Toenniessen. Securing the Harvest: Biotechnology, Breeding, and Seed Systems for African Crops. CABI Publishing, 2001.
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