杨澜 & 朱冰. (2013). 幸福要回答: Happiness project. 江苏文艺出版社.
Chicago Style aipamena杨澜 and 朱冰. 幸福要回答: Happiness Project. 江苏文艺出版社, 2013.
MLA aipamena杨澜 and 朱冰. 幸福要回答: Happiness Project. 江苏文艺出版社, 2013.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena