Modern mathematics for the engineer. - Weller, Royal; Lefschetz, Solomon; Bellman, Richard; Green, John W.; Hestenes, Magnus R.; Courant, Richard; Schiffer, Menahem M.; Wiener, Norbert; King, Gilbert W.; Pipes, Louis A.; Beckenbach, Edwin F.; Forsythe, George E.; et al. (McGraw-Hill Publishing Company, 1956)