Cohen, R. (2011). Working together in theatre: Collaboration and leadership. Palgrave Macmillan.
Lua i Stíl Chicago (17ú heag.)Cohen, Robert. Working Together in Theatre: Collaboration and Leadership. Houndmills, Basingstoke, Hampshire ; New York: Palgrave Macmillan, 2011.
Lua MLA (9ú heag.)Cohen, Robert. Working Together in Theatre: Collaboration and Leadership. Palgrave Macmillan, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.