"...the world's most comprehensive collection of dissertations and theses. The official digital dissertations archive for the Library of Congress and the database of record for graduate research....The database offers full text for most of the dissertations added since 1997 and strong retrospective full text coverage for older graduate works."
Citations' appearance vary from discipline to discipline. Here's the basic formats for books and journal articles that most historians use:
Use this template in the online catalog's Advance Keyword Search:
Subject: [type of reference work] AND Any Field: [keyword]
Subject: Bibliography AND Any Field: Sport*
Subject: Chronology AND Any Field:: Gender
Subject: Dictionaries AND Any Field:: Religi*
Subject: Encyclopedias AND Any Field: Vietnam*
Subject: Handbooks AND Any Field: "Women's studies"