Ferguson, K. (1992). Stephen Hawking: Quest for a theory of everying. Bantam.
Lua i Stíl Chicago (17ú heag.)Ferguson, Kitty. Stephen Hawking: Quest for a Theory of Everying. Toronto: Bantam, 1992.
Lua MLA (9ú heag.)Ferguson, Kitty. Stephen Hawking: Quest for a Theory of Everying. Bantam, 1992.
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