Gaya APA

Hawking, S, W. (1989). A brief history of time: From the big bang to black holes. Introd. by Carl Sagan, illustr. by Ron Miller. . New York dsl: New York dsl Bantam Books.

Gaya MLA

Hawking, Stephen, W.. "A brief history of time: From the big bang to black holes. Introd. by Carl Sagan, illustr. by Ron Miller. ". New York dsl: New York dsl Bantam Books, 1989. Buku.