APA (7th ed.) Citation

(1968). The Theory of the modern stage: An introduction to modern theatre and Drama. Penguin Bks..

Chicago Style (17th ed.) Citation

The Theory of the Modern Stage: An Introduction to Modern Theatre and Drama. Middlesex, England: Penguin Bks., 1968.

MLA (9th ed.) Citation

The Theory of the Modern Stage: An Introduction to Modern Theatre and Drama. Penguin Bks., 1968.