Kebler, Lyman F. (Lyman Frederic), b. 1863. Habit-Forming Agents: Their Indiscriminate Sale and Use a Menace to the Public Welfare, pamphlet, 1910; (https://digital.library.unt.edu/ark:/67531/metadc85674/m1/1/: accessed August 22, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; .