Sakar, Subir Kumar. Optical fibres and fibre optic communication systems [[Book] /] Subir Kumar Sakar. - Ram Nagar : S.Chand & company.ltd., 2004. - 356 p;. : ill ; 21 cm . ISBN: 8121914590 Subjects--Topical Terms: Optical fibres.fibre optic communication systems. Dewey Class. No.: 621.38275