Cita APA (7th ed.)

Shaw, B., & Laurence, D. H. (2000). Plays unpleasant. Penguin Books.

Cita Chicago (17th ed.)

Shaw, Bernard, i Dan H. Laurence. Plays Unpleasant. London ; New York: Penguin Books, 2000.

Cita MLA (8th ed.)

Shaw, Bernard, i Dan H. Laurence. Plays Unpleasant. Penguin Books, 2000.