派尔. (2010). 魔钟: Wonder clock. 哈尔滨出版社.
Lua i Stíl Chicago (17ú heag.)派尔. 魔钟: Wonder Clock. 哈尔滨出版社, 2010.
Lua MLA (8ú heag.)派尔. 魔钟: Wonder Clock. 哈尔滨出版社, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)