Sarkar, Subir Kumar Optical fibres and fibre optic communication systems / Subir Kumar Sarkar. - 4th rev. ed. - Ram Nagar, New Delhi : S. Chand & Co., 2010. - 388 p. : ill.; 20 cm. Includes index. ISBN: 8121914590 Subjects--Topical Terms: Radio engineering. Dewey Class. No.: 621.38275 / SAO