American Doctoral Dissertations These dissertations have been expanded to offer greater coverage of 20th century research as well as access to full text. Initially, this free research database provided access to the only comprehensive record of dissertations accepted by American universities between 1933 and 1955, the print index Doctoral Dissertations Accepted by American Universities.
NDLTD-Global ETD Search Search the 5,920,914 electronic theses and dissertations contained in the NDLTD archive.