普雷格尔 & 鲁比. (2016). 永远在一起: You're gone but you're still here. 北京少年儿童出版社.
Chicago Style (17th ed.) Citation普雷格尔 i 鲁比. 永远在一起: You're Gone but You're Still Here. 北京少年儿童出版社, 2016.
Cita MLA普雷格尔 i 鲁比. 永远在一起: You're Gone but You're Still Here. 北京少年儿童出版社, 2016.
Atenció: Aquestes cites poden no estar 100% correctes.