Burman, A.K. Telephones in Calcutta : an outline of history / A.K.Burman. - Kolkata : Bibhas Gupta, 1986. - 110p Standard No.: 4281 [old SOUL v1.0 record id] Subjects--Topical Terms: Telephones - History - CalcuttaTelecommunication - History - Calcutta Dewey Class. No.: 384.6095414 / B 927 t