The International Plant Genethic Resource Institute. (2005). Seed system and crop genetic diversity on-farm. The International Plant Genethic Resource Institute.
Tohutoru Kātū Chicago (17th ed.)The International Plant Genethic Resource Institute. Seed System and Crop Genetic Diversity On-farm. Roma: The International Plant Genethic Resource Institute, 2005.
Tohutoro MLA (9th ed.)The International Plant Genethic Resource Institute. Seed System and Crop Genetic Diversity On-farm. The International Plant Genethic Resource Institute, 2005.
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