APA (7th ed.) Citation

Gassner, J. (1947). Best plays of the modern American theatre. Crown Publishers.

Chicago Style (17th ed.) Citation

Gassner, John. Best Plays of the Modern American Theatre. New York: Crown Publishers, 1947.

MLA (9th ed.) Citation

Gassner, John. Best Plays of the Modern American Theatre. Crown Publishers, 1947.