Holden, J. (1984). Crop genetic resources: Conservation and evaluation. George Allen and Unwin.
Lua i Stíl Chicago (17ú heag.)Holden, J.H. Crop Genetic Resources: Conservation and Evaluation. London: George Allen and Unwin, 1984.
Lua MLA (9ú heag.)Holden, J.H. Crop Genetic Resources: Conservation and Evaluation. George Allen and Unwin, 1984.
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