Gell-Mann, M. (1997). <O >quark e o jaquar. Gradiva.
Lua i Stíl Chicago (17ú heag.)Gell-Mann, Murray. <O >quark E O Jaquar. Gradiva, 1997.
Lua MLA (8ú heag.)Gell-Mann, Murray. <O >quark E O Jaquar. Gradiva, 1997.
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