00532nam a22001937a 4500 BD-DhUL 20150115100052.0 150115s1974 ii a|||| |||| 001 0 eng d BD-DhUL BD-DhUL 621.382 DAL Das, P. N. Line telegraphy / P. N. Das. 3rd ed. Calcutta : Modern Book Agency, c1974. xvi, 203 p. : ill. ; 22 cm. Includes bibliographical references and index. telegraph. ddc BK 31360 31360 0 0 ddc 0 621_382000000000000_DAL 0 NFIC 59171 DUSL DUSL GEN 1977-10-27 Purchased 621.382 DAL A151073 2015-01-15 4 2015-01-15 BK 0 0 ddc 0 621_382000000000000_DAL 0 NFIC 59172 DUSL DUSL GEN 1977-10-27 Purchased 621.382 DAL A151072 2015-01-15 3 2015-01-15 BK 0 0 ddc 0 621_382000000000000_DAL 0 NFIC 59175 DUSL DUSL GEN 1977-10-27 Purchased 621.382 DAL A151071 2015-01-15 2 2015-01-15 BK 0 0 ddc 0 621_382000000000000_DAL 0 NFIC 59178 DUSL DUSL GEN 1977-10-27 Purchased 621.382 DAL A151070 2015-01-15 1 2015-01-15 BK 0 0 ddc 0 621_382000000000000_DAL 0 59179 DUSL DUSL 2015-01-15 621.382 DAL 2015-01-15 2015-01-15 BK