Skwirzynski, J. K. Design theory and data for electrical filters / J. K. Skwirzynski - London : Van Nostrand, c1965 - xxviii, 701 p. : ill. ; 24 cm. - The Marconi series, covering advances in radio and radar . Includes index ISBN: USD 29.50 Subjects--Topical Terms: Electric filters Dewey Class. No.: 621.384133