Lathi, B.P. Principles of linear systems and signals / B.P. Lathi. - 2nd ed. - New Delhi : Oxford University Press , c2009 [2013]. - xvi, 969 p. : 24 cm. Includes Index. ISBN: 9780198062271 Subjects--Topical Terms: Linear systemSignal Dewey Class. No.: 621.3822 / LAP