杨杨. (2019). 时光不老，你我不散: Never say goodbye. 现代出版社.
Lua i Stíl Chicago (17ú heag.)杨杨. 时光不老，你我不散: Never Say Goodbye. 现代出版社, 2019.
Lua MLA (8ú heag.)杨杨. 时光不老，你我不散: Never Say Goodbye. 现代出版社, 2019.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.