APA Citation

Emmons, R. A., & McCullough, M. E. (2004). The psychology of gratitude. Oxford: Oxford University Press.

Chicago Style Citation

Emmons, Robert A., and Michael E. McCullough. The Psychology of Gratitude. Oxford: Oxford University Press, 2004.

MLA Citation

Emmons, Robert A., and Michael E. McCullough. The Psychology of Gratitude. Oxford: Oxford University Press, 2004.

Warning: These citations may not always be 100% accurate.