Shakespeare, W., & Brooke, N. (1990). The tragedy of Macbeth. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Shakespeare, William, agus Nicholas Brooke. The Tragedy of Macbeth. Oxford ; New York: Oxford University Press, 1990.
Lua MLA (8ú heag.)Shakespeare, William, agus Nicholas Brooke. The Tragedy of Macbeth. Oxford University Press, 1990.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.