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Includes Some Full Text Database User Guide Dissertations & Theses Global 1711 - present ProQuest
Includes Some Full Text Database User Guide Dissertations & Theses@UI&U 1971 - present ProQuest
Includes Some Full Text Database User Guide Networked Digital Library of Theses and Dissertations 1900 - present NDLTD
Includes Some Full Text Database User Guide PQDT Open (ProQuest open access dissertations) Most coverage 1980 - present ProQuest