Brook, Ted Stephens.2015-12-312015-12-311950http://hdl.handle.net/2097/24555LD2668 .T4 1950 B75Insecticides--Research.A comparative study of the toxicity of aldrin, dieldrin and DDT by injection into the large milkweed bug, Oncopeltus fasciatus (Dall.)TextMasters theses