Pugh, G. T. (1955). Guide to research writing. Houghton Mifflin Company.
Chicago Style (17. basım) AtıfPugh, Griffith Thompson. Guide to Research Writing. Boston: Houghton Mifflin Company, 1955.
MLA (9th ed.) AtıfPugh, Griffith Thompson. Guide to Research Writing. Houghton Mifflin Company, 1955.
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