Pratt, G. J., Lambrou, P. T., & Mann, J. D. (2012). Code to joy: The four-step solution to unlocking your natural state of happiness. HarperOne.
Cita Chicago Style (17a ed.)Pratt, George J., Peter T. Lambrou, y John David Mann. Code to Joy: The Four-step Solution to Unlocking Your Natural State of Happiness. New York: HarperOne, 2012.
Cita MLA (8a ed.)Pratt, George J., et al. Code to Joy: The Four-step Solution to Unlocking Your Natural State of Happiness. HarperOne, 2012.
Precaución: Estas citas no son 100% exactas.