APA (7th ed.) Citation

笑予文字. (2017). 爷爷、奶奶在做什么?. 青岛出版社.

Chicago Style (17th ed.) Citation

笑予文字. 爷爷、奶奶在做什么?. 青岛出版社, 2017.

MLA (8th ed.) Citation

笑予文字. 爷爷、奶奶在做什么?. 青岛出版社, 2017.

Warning: These citations may not always be 100% accurate.