APA (7th ed.) Citation

Gassner, J. (1939). Twenty best plays of the modern American theatre.[Early series]. Crown Publishers.

Chicago Style (17th ed.) Citation

Gassner, John. Twenty Best Plays of the Modern American Theatre.[Early Series]. New York: Crown Publishers, 1939.

MLA (9th ed.) Citation

Gassner, John. Twenty Best Plays of the Modern American Theatre.[Early Series]. Crown Publishers, 1939.