Feller, William An introduction to probability theory and its applications / William Feller. - 2a ed. - New York : John willey, 1971. - vii, 669 p. : ěl. ; 22 cm. - Wiley series in probability and mathematical statistics . Incluye ěndice Subjects--Topical Terms: Probabilidades--Problemas, ejercicios, etc. LC Class. No.: QA273.2 / F37 1971