Diseases of field crops and forage plants
Kirk, T.W.
Diseases of field crops and forage plants - Wellington 1909 - 1-4 p. - Diseases, Crops, Plant New Zealand Department of Agriculture. Leaflets for Farmers, No. 78 .
Diseases of field crops and forage plants - Wellington 1909 - 1-4 p. - Diseases, Crops, Plant New Zealand Department of Agriculture. Leaflets for Farmers, No. 78 .