Qureshi, I., & Kincaid, D. L. (1970). Product testing and evaluation. East-West Communication Institute.
Chicago Style (17. basım) AtıfQureshi, Igbal, ve D. Lawrence Kincaid. Product Testing and Evaluation. Honolulu: East-West Communication Institute, 1970.
MLA (9th ed.) AtıfQureshi, Igbal, ve D. Lawrence Kincaid. Product Testing and Evaluation. East-West Communication Institute, 1970.
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