Blackwell, William A. Mathematical modeling of physical networks [by] W. A. Blackwell. - New York, Macmillan [1968] - Macmillan series in electrical science . Includes bibliographies. LCCN: 68010625 //r90 Subjects--Topical Terms: System analysis. LC Class. No.: QA402 / .B5 Dewey Class. No.: 620/.7