Watermelon diseases
Orton, W.A.
Watermelon diseases - Washington 1917 - 1-18 p. - Watermelon, Disease United States Department of Agriculture. Farmers Bulletin No. 821 .
Watermelon diseases - Washington 1917 - 1-18 p. - Watermelon, Disease United States Department of Agriculture. Farmers Bulletin No. 821 .