Xiaoyun, C. Useful life.
Lua i Stíl Chicago (17ú heag.)Xiaoyun, Chen. Useful Life.
Lua MLA (8ú heag.)Xiaoyun, Chen. Useful Life.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
Lua APA (7ú heag.)