Brush, S. B. (2000). Genes in the field: On-farm conservation of crop diversity. Lewis.
Dyfyniad Arddull ChicagoBrush, Stephen B. Genes in the Field: On-farm Conservation of Crop Diversity. London: Lewis, 2000.
Dyfyniad MLABrush, Stephen B. Genes in the Field: On-farm Conservation of Crop Diversity. Lewis, 2000.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.