金 & 曹聪. (2016). 蜗牛和乌龟: Snail and turtle are friends. 河北少年儿童出版社.
Chicago Style (17th ed.) Citation金 i 曹聪. 蜗牛和乌龟: Snail and Turtle Are Friends. 河北少年儿童出版社, 2016.
Cita MLA金 i 曹聪. 蜗牛和乌龟: Snail and Turtle Are Friends. 河北少年儿童出版社, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.