1. Child welfare in Tennessee: an inquiry by the National Child Labor Committee for the Tennessee Child Welfare Commission Author(s): National Child Labor Committee (U.S.) author. Publication: [Nashville] : Tennessee Department of Public Instruction, 1920 Subject(s): Child WelfareChild HealthChild LaborTennessee
2. A text-book of organic chemistry for students of medicine and biology Author(s): McCollum, Elmer Verner, 1879-1967 Publication: New York : The Macmillan Company, 1920 Subject(s): Chemistry, OrganicOrganic Chemistry Phenomena
3. Textbook of physical chemistry Author(s): Lincoln, Azariah T. (Azariah Thomas), 1868-1958 author Publication: Boston : D.C. Heath & Co., [1920] Subject(s): Chemistry, Physical