Cita APA (7a ed.)

Bigsby, C. W. E. (1987). A critical introduction to twentieth-century American drama. University Press.

Cita Chicago Style (17a ed.)

Bigsby, C. W. E. A Critical Introduction to Twentieth-century American Drama. Cambridge [etc.]: University Press, 1987.

Cita MLA (9a ed.)

Bigsby, C. W. E. A Critical Introduction to Twentieth-century American Drama. University Press, 1987.