APA引文

HAWKING STEPHEN. (2001). UNIVERSE IN A NUTSHELL. BANTAM BOOKS.

芝加哥风格引文

HAWKING STEPHEN. UNIVERSE IN A NUTSHELL. NEW YORK: BANTAM BOOKS, 2001.

MLA引文

HAWKING STEPHEN. UNIVERSE IN A NUTSHELL. BANTAM BOOKS, 2001.