Proceedings of the fifteenth annual meeting of the association of economic entomologists
Felt, E.P.
Proceedings of the fifteenth annual meeting of the association of economic entomologists - Washington 1903 - 1-124 p. - Economic, Entomology United States Department of Agriculture, Bureau of Entomology. Bulletin No. 40 .
Proceedings of the fifteenth annual meeting of the association of economic entomologists - Washington 1903 - 1-124 p. - Economic, Entomology United States Department of Agriculture, Bureau of Entomology. Bulletin No. 40 .