With more than 2 million entries, this database is the world's most comprehensive collection of doctoral dissertations and master's theses from around the world, spanning from 1861 to the present day. Dissertations published from 1980 forward include 350- word abstracts written by the author. Master's theses published from 1988 forward include 150-word abstracts. Titles available as native or image PDF formats include free twenty-four page previews. UMI offers over 1.8 million titles for purchase in microform, paper or electronic formats

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