Insects affecting vegetable crops in Porto rico
Jones, Thomas H.
Insects affecting vegetable crops in Porto rico - Washington 1915 - 1-11 p. - Vegetable, Crop United States Department of Agriculture. Bulletin No. 192 .
Insects affecting vegetable crops in Porto rico - Washington 1915 - 1-11 p. - Vegetable, Crop United States Department of Agriculture. Bulletin No. 192 .