Hubbard, L. R. (2007). The Way to Happinessa Common Sense Guide to Better Living. The Way to Happiness Foundation.
Dyfyniad Arddull ChicagoHubbard, L. Ron. The Way to Happinessa Common Sense Guide to Better Living. The Way to Happiness Foundation, 2007.
Dyfyniad MLAHubbard, L. Ron. The Way to Happinessa Common Sense Guide to Better Living. The Way to Happiness Foundation, 2007.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.