Webb, S. (2004). Out of this world: Colliding universes, branes, strings, and other wild ideas of modern physics. Copernicus Books in association with Praxis.
Lua i Stíl Chicago (17ú heag.)Webb, Stephen. Out of This World: Colliding Universes, Branes, Strings, and Other Wild Ideas of Modern Physics. New York: Copernicus Books in association with Praxis, 2004.
Lua MLA (9ú heag.)Webb, Stephen. Out of This World: Colliding Universes, Branes, Strings, and Other Wild Ideas of Modern Physics. Copernicus Books in association with Praxis, 2004.
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