(1949). Pursuit of happiness: A primer for modern living. Spero Foundation.
Chicagoスタイル(17版)引用形式Pursuit of Happiness: A Primer for Modern Living. New York: Spero Foundation, 1949.
MLA(8版)引用形式Pursuit of Happiness: A Primer for Modern Living. Spero Foundation, 1949.
警告: この引用は必ずしも正確ではありません.