笑予文字. (2017). 姥爷、姥姥在做什么？. 青岛出版社.
Chicago Style (17th ed.) Citation笑予文字. 姥爷、姥姥在做什么？. 青岛出版社, 2017.
MLA (8th ed.) Citation笑予文字. 姥爷、姥姥在做什么？. 青岛出版社, 2017.
Warning: These citations may not always be 100% accurate.
APA (7th ed.) Citation