Dissertation Abstracts (ProQuest Dissertations & Theses) (1861 - Current)
Includes citations for dissertations dating from the first U.S. dissertation issued in 1861. Contains abstracts for dissertations from 1980 to the present and for master's theses from 1988 forward. The work of authors from over 1,000 North American graduate schools and European universities are also included. Titles published since 1997 are available in PDF digital format and have 24 page previews available.