Samuel, R., MacColl, E., & Samuel, R. (1985). Theatres of the left: 1880 - 1935 : workers' theatre movements in Britain and America. Routledge & Kegan Paul.
Chicago-viite (17. p.)Samuel, Raphael, Ewan MacColl, ja Raphael Samuel. Theatres of the Left: 1880 - 1935 : Workers' Theatre Movements in Britain and America. London [u.a.]: Routledge & Kegan Paul, 1985.
MLA-viite (8. p.)Samuel, Raphael, et al. Theatres of the Left: 1880 - 1935 : Workers' Theatre Movements in Britain and America. Routledge & Kegan Paul, 1985.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.