Cita APA (7th ed.)

Ferguson, K. (1991). Stephen Hawking: Quest for a theory of everything. Bantam.

Cita Chicago (17th ed.)

Ferguson, Kitty. Stephen Hawking: Quest for a Theory of Everything. Toronto: Bantam, 1991.

Cita MLA (8th ed.)

Ferguson, Kitty. Stephen Hawking: Quest for a Theory of Everything. Bantam, 1991.