AuthorDas, P. N
TitleAn Introduction to manual telephony / P.N. Das
Imprint Calcutta : Modern Book Agency, [1973]
Edition 2nd ed
Descript 148 p. : charts, diagrs

Telephone systems Telephone -- Handbooks manuals etc

LOCATIONCALL#STATUS
Central Library (4th Floor)621.386 D61ICHECK SHELVES