Samuel, R., MacColl, E., & Samuel, R. (1985). Theatres of the left: 1880 - 1935 : workers' theatre movements in Britain and America. Routledge & Kegan Paul.
शिकागो शैली (17वां संस्करण) प्रशस्ति पत्रSamuel, Raphael, Ewan MacColl, और Raphael Samuel. Theatres of the Left: 1880 - 1935 : Workers' Theatre Movements in Britain and America. London [u.a.]: Routledge & Kegan Paul, 1985.
एमएलए (8वां संस्करण) प्रशस्ति पत्रSamuel, Raphael, et al. Theatres of the Left: 1880 - 1935 : Workers' Theatre Movements in Britain and America. Routledge & Kegan Paul, 1985.
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