Cita APA (7a ed.)

Post, S. G., & Neimark, J. (2007). Why good things happen to good people: How to live a longer, haealthier, happier life by the simple act of giving. Broadway Books.

Cita Chicago Style (17a ed.)

Post, Stephen Garrard, y Jill Neimark. Why Good Things Happen to Good People: How to Live a Longer, Haealthier, Happier Life by the Simple Act of Giving. New York: Broadway Books, 2007.

Cita MLA (9a ed.)

Post, Stephen Garrard, y Jill Neimark. Why Good Things Happen to Good People: How to Live a Longer, Haealthier, Happier Life by the Simple Act of Giving. Broadway Books, 2007.