Samuel, Raphael. Theatres of the left, 1880-1935 : workers' theatre movements in Britain and America / Raphael Samuel, Ewan MacColl, Stuart Cosgrove. - London ; Routledge & Kegan Paul, 1985. - xx, 364 p. : ISBN: 0710009011 (pbk.) : Subjects--Topical Terms: Workers' theater. Dewey Class. No.: 792.022 / Th