格雷 & 张雪兰. (2006). 孩子来自天堂: Children are from heaven. 京华出版社.
Chicago Style (17th ed.) Citation格雷 and 张雪兰. 孩子来自天堂: Children Are from Heaven. 京华出版社, 2006.
MLA (8th ed.) Citation格雷 and 张雪兰. 孩子来自天堂: Children Are from Heaven. 京华出版社, 2006.
Warning: These citations may not always be 100% accurate.