The Influence of Mosquitoes on Milk Production in Delaware
Illus. with charts & maps. Newark: University of Delaware Agricultural Experiment Station, 1938. 8vo. Wraps. 21 p. Bulletin No. 213, Technical No. 21. [55514]
Illus. with charts & maps. Newark: University of Delaware Agricultural Experiment Station, 1938. 8vo. Wraps. 21 p. Bulletin No. 213, Technical No. 21. [55514]