Gawdat, M. (2017). Solve for happy: Engineering your path to joy (First North Star Way hardcover edition.). North Star Way.
Style de citation Chicago (17e éd.)Gawdat, Mo. Solve for Happy: Engineering Your Path to Joy. First North Star Way hardcover edition. New York: North Star Way, 2017.
Style de citation MLA (8e éd.)Gawdat, Mo. Solve for Happy: Engineering Your Path to Joy. First North Star Way hardcover edition. North Star Way, 2017.
Attention : ces citations peuvent ne pas être correctes à 100%.