采夕 & 陈致国. (2019). 难过三分钟: Sad for three minutes. 中国少年儿童出版社.
Chicago Style (17th ed.) Citation采夕 i 陈致国. 难过三分钟: Sad for Three Minutes. 中国少年儿童出版社, 2019.
Cita MLA采夕 i 陈致国. 难过三分钟: Sad for Three Minutes. 中国少年儿童出版社, 2019.
Atenció: Aquestes cites poden no estar 100% correctes.