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.
Lua i Stíl Chicago (17ú heag.)普雷格尔 agus 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.
Lua MLA (8ú heag.)普雷格尔 agus 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.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.