ProQuest Dissertations and Theses
1861 - present (Doctoral dissertations)
1962 - present (Masters theses). Description: Dissertations and theses from over 1000 universities. Doctoral dissertations are indexed for almost all North American graduate schools and many European universities. Masters theses from selected schools only. Provides bibliographic citations for older titles. Abstracts are included for dissertations since 1980 and for masters theses since 1988.
Some dissertations, beginning with 1997 publication dates, are available digitally.