Vincent. (1980). The Power of Positive Thinking Peale, Norman. Harvard Business Review.
Chicagoスタイル(17版)引用形式Vincent. The Power of Positive Thinking Peale, Norman. Boston: Harvard Business Review, 1980.
MLA(9版)引用形式Vincent. The Power of Positive Thinking Peale, Norman. Harvard Business Review, 1980.
警告: この引用は必ずしも正確ではありません.