于阳. (2009). 幸福从心开始: Happiness starts from the heart. 陕西师范大学出版社.
Dyfyniad Arddull Chicago于阳. 幸福从心开始: Happiness Starts from the Heart. 陕西师范大学出版社, 2009.
Dyfyniad MLA于阳. 幸福从心开始: Happiness Starts from the Heart. 陕西师范大学出版社, 2009.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.