Lester, J. D. (1993). Writing research papers: A complete guide (7th ed.). Harper Collins.
Chicago Style (17. basım) AtıfLester, James D. Writing Research Papers: A Complete Guide. 7th ed. New York: Harper Collins, 1993.
MLA (9th ed.) AtıfLester, James D. Writing Research Papers: A Complete Guide. 7th ed. Harper Collins, 1993.
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