APA (7th ed.) Citation

Shakespeare, W., Mowat, B. A., & Werstine, P. (1937). The tragedy of Macbeth. Penguin Books.

Chicago Style (17th ed.) Citation

Shakespeare, William, Barbara A. Mowat, and Paul Werstine. The Tragedy of Macbeth. Victoria: Penguin Books, 1937.

MLA (8th ed.) Citation

Shakespeare, William, et al. The Tragedy of Macbeth. Penguin Books, 1937.