Citazione Stile APA (7a Edizione)

Berkowitz, G. M. (1992). American drama of the twentieth century. Longman.

Citazione stile Chigago Style (17a edizione)

Berkowitz, Gerald M. American Drama of the Twentieth Century. London ; New York: Longman, 1992.

Citatione MLA (8a ed.)

Berkowitz, Gerald M. American Drama of the Twentieth Century. Longman, 1992.