Chinch bug and its control
Horton, J.R., Satterthwait, A.F.
Chinch bug and its control - Washington 1922 - 1-35 p. - United States Department of Agriculture. Farmers Bulletin No. 1223 .
Chinch bug and its control - Washington 1922 - 1-35 p. - United States Department of Agriculture. Farmers Bulletin No. 1223 .