Journal Article Databases:
Citation Analysis Databases Choose a citation analysis database to see the most influential articles in a field.
Credo Reference source for ideas on keywords and background information
Dissertations and Theses Full Text (read PHDs and Master's Degrees for style, content and their bibliographies)
Oxford Reference Reference source for ideas on keywords and background information
Periodical List Look up your journal citation and see which database has it.
WorldCat - Every book in the world, even if we don't have it. Request through Interlibrary loan.