Hall, M. (1987). Mo'-ti-va-tion: How to be a positive force in a negative world. Good-News encounters, inc.
Chicago Style (17. basım) AtıfHall, Michael. Mo'-ti-va-tion: How to Be a Positive Force in a Negative World. Missouri: Good-News encounters, inc, 1987.
MLA (9th ed.) AtıfHall, Michael. Mo'-ti-va-tion: How to Be a Positive Force in a Negative World. Good-News encounters, inc, 1987.
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