Tancredi, G. (1993). Evolution of Jupiter family comets. Uppsala University.
Lua i Stíl Chicago (17ú heag.)Tancredi, Gonzalo. Evolution of Jupiter Family Comets. Uppsala, Sweden: Uppsala University, 1993.
Lua MLA (8ú heag.)Tancredi, Gonzalo. Evolution of Jupiter Family Comets. Uppsala University, 1993.
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