Johnstone, K. (2019). Impro: Improvisation and the theatre. Bloomsbury Academic.
Chicago Style (17. basım) AtıfJohnstone, Keith. Impro: Improvisation and the Theatre. London ; New York: Bloomsbury Academic, 2019.
MLA (9th ed.) AtıfJohnstone, Keith. Impro: Improvisation and the Theatre. Bloomsbury Academic, 2019.
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