Kaplan, J. (2015). The gratitude diaries: How a year looking on the bright side can transform your life. Dutton.
Chicagoスタイル(17版)引用形式Kaplan, Janice. The Gratitude Diaries: How a Year Looking on the Bright Side Can Transform Your Life. New York: Dutton, 2015.
MLA(9版)引用形式Kaplan, Janice. The Gratitude Diaries: How a Year Looking on the Bright Side Can Transform Your Life. Dutton, 2015.
警告: この引用は必ずしも正確ではありません.