APA

Hawking S., . (2011). A Brief History of Time. London: Bantam Books.

Chicago

Hawking Stephen, . 2011. A Brief History of Time. London: Bantam Books.

Harvard

Hawking S., . (2011). A Brief History of Time. London: Bantam Books.

MLA

Hawking Stephen, . A Brief History of Time. London: Bantam Books. 2011.