Formerly Digital Dissertations, ProQuest Dissertations and Theses Full Text is the most comprehensive collection of dissertations and theses available. It is the official digital dissertations archive for the Library of Congress and the database of record for graduate research. PQDT Full Text includes 2.4 million dissertation and theses citations from around the world (from 1861 to the present day) together with 1 million full-text dissertations that are available for download in PDF format. The database offers full text for most of the dissertations added since 1997 and strong retrospective full-text coverage for older graduate works.
"The mission of Theses Canada is to acquire and preserve a comprehensive collection of Canadian theses at Library and Archives Canada (LAC), to provide access to this valuable research within Canada and throughout the world. Its mission to preserve this portion of Canada's bibliographic heritage is achieved through collaboration with the many Canadian universities who participate in the program." Contains theses from 1965 onwards.