Under this method, you would combine the recent studies on American whaling in the 19th century with Moby Dick itself in the category, even though the authors wrote a century apart.
New York: Longman, Who writes these things, anyway? Appropriate and relevant research questions and the methods employed to answer them must be framed in the context of existing research.
Boston: Allyn and Bacon, Examining every side of your story will strengthen your literature review and give you more confidence as you move forward with your thesis. However, if you are writing a review in the humanities, history, or social sciences, a survey of the history of the literature may be what is needed, because what is important is how perspectives have changed through the years or within a certain time period.
I alternated between reading and writing until I had about 40 pages of text. The Allyn and Bacon Handbook. How well do they present the material and do they portray it according to an appropriate theory?
Simon and Schuster Handbook for Writers.