Title: Biblio RTF Export
Author: Biblio 7.x

W. J.  Hartung, ?Enemies of the leafhopper. Natural foes of Eutettix tenella in California and their usefulness?, Facts about Sugar. VIII, vol. 26, pp. 470-471, 492-493, 1919.

W. J.  Hartung and Severin, H. H. P., ?Natural enemies of the sugar beet leafhoppers in California?, Mon. Bull. Calif. Comm. Hort., vol. 4, pp. 277-279, 1915.