克拉森 & 杨玲玲. (2021). 天上掉下一块大石头: Rock from the sky. 明天出版社.
Chicago Style (17th ed.) Citation克拉森 and 杨玲玲. 天上掉下一块大石头: Rock from the Sky. 明天出版社, 2021.
MLA (8th ed.) Citation克拉森 and 杨玲玲. 天上掉下一块大石头: Rock from the Sky. 明天出版社, 2021.
Warning: These citations may not always be 100% accurate.