凯雷特 & 楼武挺. (2020). 突然，响起一阵敲门声: Suddenly, a knock on the door. 湖南文艺出版社.
Chicago Style (17th ed.) Citation凯雷特 i 楼武挺. 突然，响起一阵敲门声: Suddenly, a Knock on the Door. 湖南文艺出版社, 2020.
Cita MLA凯雷特 i 楼武挺. 突然，响起一阵敲门声: Suddenly, a Knock on the Door. 湖南文艺出版社, 2020.
Atenció: Aquestes cites poden no estar 100% correctes.