Finding Secondary Sources
Periodical Indexes
America: History and Life (1955- ) includes books, book chapters, journal articles, and book reviews.
Web of Science Citation Indexes allow citation searching, that is, starting with an article of interest and finding more recent articles that have cited it. More information.
Race Relations Abstracts (1975-Present)
Bibliography of Native North Americans (16th century- )
Bibliographies
Look for specialized subject bibliographies in the HOLLIS Catalog: Search, for example, <police bibliography [Subject Keyword search]>. The term Bibliography MUST be searched as a Subject keyword: Change Limit to:anywhere to Limit to: subject.
Oxford Bibliographies: Criminology