Hubbard, L. (2007). Way to happiness: A common sense guide to better living. Way to happiness foundation.
Chicago Edition CitationHubbard, L. Way to Happiness: A Common Sense Guide to Better Living. Newyork: Way to happiness foundation, 2007.
Cita MLAHubbard, L. Way to Happiness: A Common Sense Guide to Better Living. Way to happiness foundation, 2007.
Atenció: Aquestes cites poden no estar 100% correctes.