00849cam a22002771 4500 7513566 BD-DhUL 20150114174058.0 871223s1963 ii a b 000 0 eng sa 64000289 (OCoLC)17283365 DLC ICRL WU DLC BD-DhUL premarc TK6397 .D3 621.385 DAI Das, P. N. An introduction to automatic telephony : for the undergraduate students of tele-communication and electrical engineering / P. N. Das [1st ed.] Calcutta : Modern Book Agency, c1963. viii, 212 p. : ill. ; 22 cm. TK 1200.00 Includes index. Telephone, Automatic. 7 cbc oclcrpl u ncip 19 y-gencatlg ddc BK 31128 31128 0 0 ddc 0 621_385000000000000_DAI 0 NFIC 58761 DUSL DUSL GEN 0000-00-00 purchased 621.385 DAI A151068 2015-01-14 3 2015-01-14 BK 0 0 ddc 0 621_385000000000000_DAI 0 NFIC 58764 DUSL DUSL GEN 0000-00-00 purchased 621.385 DAI A151069 2015-01-14 4 2015-01-14 BK 0 0 ddc 0 621_385000000000000_DAI 0 NFIC 58765 DUSL DUSL GEN 0000-00-00 purchased 621.385 DAI A151066 2015-01-14 1 2015-01-14 BK