戈尔. (2004). 心心相印: Joined at the Heart. 中国方正出版社.
Chicago (17e ed.) Bronvermelding戈尔. 心心相印: Joined at the Heart. 中国方正出版社, 2004.
MLA (8e ed.) Bronvermelding戈尔. 心心相印: Joined at the Heart. 中国方正出版社, 2004.
Let op: Deze citaties zijn niet altijd 100% accuraat.