Excerpts: This compilation of 1,064 bibliographic citations covering all aspects of the research efforts on DDT [1,1-Dichloro-2, 2-bis (P-Chlorophenyl) Ethylene] was prepared from the computerized files of the Pesticides Information Center, National Agricultural Library. All items appearing in this publication have previously appeared in the Pesticides Documentation Bulletin. The articles cited are divided into a categorized bibliography with citations arranged alphabetically by author under the following major subjects: 10 Entomology -- 20 Crop Protection -- 30 Livestock Protection -- 40 Commodity Protection -- 50 Environmental. Contamination -- 55 Residues -- 60 Toxicology -- 65 Plant Physiology & Biochemistry – 70 Chemistry-- 80 Engineering -- 90 Industry. Includes subject, biographical, and author indexes.