Jeffery, R. L. The theory of functions of a real variable - 2a ed. - Toronto: University of toronto press, 1953. - xiii, 232 p. ; graf.; - Mathematical expositions no. 6 . - Mathematical expositions ; no. 6 . Subjects--Topical Terms: FUNCIONES DE VARIABLE REALECUACIONES INTEGRALES Universal Decimal Class. No.: 517.51