霍金 & 杜欣欣. (2007). 霍金讲演录: Black holes and baby universes and other essays. 湖南科学技术出版社.
Lua i Stíl Chicago (17ú heag.)霍金 agus 杜欣欣. 霍金讲演录: Black Holes and Baby Universes and Other Essays. 湖南科学技术出版社, 2007.
Lua MLA (8ú heag.)霍金 agus 杜欣欣. 霍金讲演录: Black Holes and Baby Universes and Other Essays. 湖南科学技术出版社, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.