威利斯 & 桑德斯. (2017). 走开，小不点儿！: There's no such thing as a snappenpoop. 化学工业出版社.
Chicago Style aipamena威利斯 and 桑德斯. 走开，小不点儿！: There's No Such Thing as a Snappenpoop. 化学工业出版社, 2017.
MLA aipamena威利斯 and 桑德斯. 走开，小不点儿！: There's No Such Thing as a Snappenpoop. 化学工业出版社, 2017.
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