乔普拉 & 蒋永强. (2010). 乔普拉七法则: Ultimate happiness prescription. 北方妇女儿童出版社.
Chicago Style (17th ed.) Citation乔普拉 and 蒋永强. 乔普拉七法则: Ultimate Happiness Prescription. 北方妇女儿童出版社, 2010.
MLA (8th ed.) Citation乔普拉 and 蒋永强. 乔普拉七法则: Ultimate Happiness Prescription. 北方妇女儿童出版社, 2010.
Warning: These citations may not always be 100% accurate.