Abrahams, J.R. Signal flow analysis/ J.R. Abrahams, G.P. Coverley - Oxford: Pergamon Press, c1965 - ix, 158 p.; 20 cm. - The Commonwealth and international library; electrical and engineering division . Includes index Subjects--Topical Terms: FlowgraphsGraphic methodsSystem analysis Dewey Class. No.: 631.31921