This bibliography consists of an indexed collection of 230 references, with abstracts, to literature published between January 1990 and June 1991 on alcohol, tobacco, and other drug use among school-age youth in the United States, and what can be done to prevent or reduce use. The main focus is on research, specifically epidemiological surveys, investigations of risk factors, and prevention program evaluations. General discussions, literature reviews, and program descriptions were included if they seemed helpful in understanding the nature of the problem and developing programs to address it. Because of the dearth of information about program effectiveness, program evaluations from other English-speaking countries were also included. The bibliography lists documents with their abstracts alphabetically by author. The index follows, with entries for subjects and specific drugs discussed and type of document. Index terms indicate which designate population types and geographic areas refer to research or other literature which specifically discusses them. Author abstracts tend to be limited to a summary of the findings, saying little about implications for practice or further research. While this guide relies heavily on existing author abstracts, these abstracts were revised as necessary, based on examination of the study, to ensure thoroughness. It was also necessary to write many new abstracts for this bibliography. In developing this guide an extensive literature search was conducted through the major computerized databases (ETOH, DRUGINFO, ERIC) and expanded upon through manual searches of books, publishers' lists, and printed current awareness bibliographies. (ABL)