كتب ذات صلة

A text-book of plant diseases caused by cryptogamic parasites

A text-book of plant diseases caused by cryptogamic parasites

A text-book of plant diseases caused by cryptogramic parasites

A text-book of mycology and plant pathology

• The sheep-fluke
  المؤلفون: Cobb, Nathan Augustus
• Seed wheat: an investigation and discussion of the relative value as seed of large plump and small shrivelled grains.
  المؤلفون: Cobb, Nathan Augustus
• Nematodes, mostly Australian and Fijian.
  المؤلفون: Cobb, Nathan Augustus