Skwirzynski, J. K. Design theory and data for electrical filters [by] J. K. Skwirzynski. - London, New York, Van Nostrand [1965] - xxviii, 701p. illus. 24cm. - The Marconi series, covering advances in radio and radar . Bibliography: p.xvii-xviii. LCCN: 65011072 Subjects--Topical Terms: Electric filters LC Class. No.: TK7872.F5 / S5 Dewey Class. No.: 621.319 21 SKW