APA (7th ed.) Citation

Johnstone, K. (2007). Impro : improvisation and the theatre / Keith Johnstone ; with an introduction by Irving Wardle: Improvisation and the theatre. Methuen Drama.

Chicago Style (17th ed.) Citation

Johnstone, Keith. Impro : Improvisation and the Theatre / Keith Johnstone ; with an Introduction by Irving Wardle: Improvisation and the Theatre. London: Methuen Drama, 2007.

MLA (9th ed.) Citation

Johnstone, Keith. Impro : Improvisation and the Theatre / Keith Johnstone ; with an Introduction by Irving Wardle: Improvisation and the Theatre. Methuen Drama, 2007.

Warning: These citations may not always be 100% accurate.