Ferguson, K. (1991). Stephen Hawking: Quest for a theory of everything. Bantam.
Citación estilo ChicagoFerguson, Kitty. Stephen Hawking: Quest for a Theory of Everything. Toronto: Bantam, 1991.
Cita MLAFerguson, Kitty. Stephen Hawking: Quest for a Theory of Everything. Bantam, 1991.
Warning: These citations may not always be 100% accurate.