(1994). Crop production and crop protechtion: Estimated losses in major food and cash crops. Amsterdam: Elsevier Science.
Dyfyniad Arddull ChicagoCrop Production and Crop Protechtion: Estimated Losses in Major Food and Cash Crops. Amsterdam: Elsevier Science, 1994.
Dyfyniad MLACrop Production and Crop Protechtion: Estimated Losses in Major Food and Cash Crops. Amsterdam: Elsevier Science, 1994.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.