Matwiejczuk-Yardley, K. M. (1997). Role Play: Theory and practice (ed.). SAGE Publications.
Lua i Stíl Chicago (17ú heag.)Matwiejczuk-Yardley, Krysia M. Role Play: Theory and Practice. ed. London: SAGE Publications, 1997.
Lua MLA (9ú heag.)Matwiejczuk-Yardley, Krysia M. Role Play: Theory and Practice. ed. SAGE Publications, 1997.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.