Kaplan, J. (2015). The gratitude diaries: How a year looking on the bright side can transform your life. Dutton.
Chicago-čujuhus (17. p.)Kaplan, Janice. The Gratitude Diaries: How a Year Looking on the Bright Side Can Transform Your Life. New York: Dutton, 2015.
MLA-čujuhus (9. p.)Kaplan, Janice. The Gratitude Diaries: How a Year Looking on the Bright Side Can Transform Your Life. Dutton, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.