Chen, Hollis C. Theory of electromagnetic waves : a coordinate-free approach / Hollis C. Chen. - New York : McGraw-Hill Book Co., c1983. - xiv, 449 p. : ill. ; 25 cm. Includes indexes. ISBN: 0070106886 LCCN: 82014054 LC Class. No.: QC661 / .C47 1983 Dewey Class. No.: 530.1/41