Friedberg, Stephen H. Linear algebra / by Stephen H Friedberg, Arnold J. Insel and Lawrence E. Spence. - 4th ed / . - New Delhi : PHI Learning , 2009. - 601p. : figures ; 23cm . Includes index ISBN: 9788120326064 RS325.00 Subjects--Index Terms: ALGEBRAS, LINEAR Dewey Class. No.: 512.5 / FRI/L