龚勋. (2009). 十万个为什么: Knowledge for the students. 云南教育出版社.
Lua i Stíl Chicago (17ú heag.)龚勋. 十万个为什么: Knowledge for the Students. 云南教育出版社, 2009.
Lua MLA (8ú heag.)龚勋. 十万个为什么: Knowledge for the Students. 云南教育出版社, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.