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Das, P. N.

An introduction to Automatic telephony : for the undergraduate students of tele-communication and electrical engineering / P. N. Das - [4th ed.] - Calcutta : Modern Book Agency, c1975. - viii, 212 p. : ill. ; 22 cm.

Includes index.

sa 64000289


Telephone, Automatic.

TK6397 / .D3

621.385 / DAI
Last Updated on September 15, 2019
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