APA-viite (7. p.)

HAWKING, S. (1988). A BRIEF HISTORY OF TIME: FROM THE BIG BANG TO BLACK HOLES. BANTAM BOOKS.

Chicago-viite (17. p.)

HAWKING, STEPHEN. A BRIEF HISTORY OF TIME: FROM THE BIG BANG TO BLACK HOLES. LONDON: BANTAM BOOKS, 1988.

MLA-viite (9. p.)

HAWKING, STEPHEN. A BRIEF HISTORY OF TIME: FROM THE BIG BANG TO BLACK HOLES. BANTAM BOOKS, 1988.