University Press Books
examples:
Harvard University Press
Baylor University Press
Non University Press/Scholarly Publishers
examples:
Sage, St. Martin's Press, Palgrave,
Rowman and Littlefield, Lynne Reinner
Textbooks
examples:
Longman Publishing Company
Norton
Prentice Hall
Macmillan
Thompson/wadsworth
Mc-Graw/Hill
Encyclopedias
Not appropriate for research papers