Salas and Hille's calculus : several variables.
Salas, Saturnino L,author.
Hille, Einar,1894-
Etgen, Garret J.
Salas, Saturnino L.Calculus : one and several variables.
Rev. edition of: Calculus : one and several variables. 6th edition 1990.
Includes index.
Calculus.