Pettofrezzo, Anthony J. Elements of linear algebra / [by] Anthony J. Pettofrezzo. - Englewood Cliffs, N.J., : Prentice-Hall , 1970 . - x, 291 p. illus. 24 cm ISBN: 0132661551 LCCN: Subjects--Topical Terms: AlgebrassLinear LC Class. No.: QA251