Hall, M. (1987). Mo'-ti-va-tion: How to be a positive force in a negative world. Good-News encounters, inc.
芝加哥风格引文Hall, Michael. Mo'-ti-va-tion: How to Be a Positive Force in a Negative World. Missouri: Good-News encounters, inc, 1987.
MLA引文Hall, Michael. Mo'-ti-va-tion: How to Be a Positive Force in a Negative World. Good-News encounters, inc, 1987.
警告：这些引文格式不一定是100％准确.