APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (8e ed.) Bronvermelding

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