格林德列 & 陈丹燕. (2011). 天为啥是蓝的？: Why is the sky blue? 明天出版社.
Dyfyniad Arddull Chicago格林德列 and 陈丹燕. 天为啥是蓝的？: Why Is the Sky Blue? 明天出版社, 2011.
Dyfyniad MLA格林德列 and 陈丹燕. 天为啥是蓝的？: Why Is the Sky Blue? 明天出版社, 2011.
Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.