Ferguson, K. (1991). Stephen Hawking: Quest for a theory of everything. Bantam.
芝加哥风格引文Ferguson, Kitty. Stephen Hawking: Quest for a Theory of Everything. Toronto: Bantam, 1991.
MLA引文Ferguson, Kitty. Stephen Hawking: Quest for a Theory of Everything. Bantam, 1991.
警告：这些引文格式不一定是100％准确.