Ray, Siddhartha Guha Tramworkers of Calcutta : some reflections on their unionisation and political experience 1920 to 1930 / Siddhartha Guha Ray - Calcutta : Centre for Studies in Social Sciences , 1986 - 28p. : ill. ; 25 cm. - CSSS, Occasional paper No. 83 . Includes bibliographical references and index. Subjects--Topical Terms: WorkersIndiaWest Bengaltrade unions Gov. Doc. Class. No.: IN CSSS OP-83