Karplus, Walter J. Analog methods Walter J. Karplus and Walter W. Soroka - 2nd ed. - New York McGraw-Hill 1959 - xiii, 483p. - McGraw-Hill Series in Engineering Sciences . Subjects--Topical Terms: Analog ComputationAnalog SimulationComputationNASA Thesaurus Universal Decimal Class. No.: 519.684.2 / KAR