APA সাইটেশন

Bigsby, C. W. E. (1984). Critical introduction to twentieth century american drama. Cambridge University press.

শিকাগো স্টাইলে সাইটেশন

Bigsby, C. W. E. Critical Introduction to Twentieth Century American Drama. New York: Cambridge University press, 1984.

এমএলএ সাইটেশন

Bigsby, C. W. E. Critical Introduction to Twentieth Century American Drama. Cambridge University press, 1984.