APA (7th ed.) Citation

Campbell, D., & Barnes, J. (1992). Macbeth II: The themes of Macbeth. Encyclopedia Britannica Educational Corporation.

Chicago Style (17th ed.) Citation

Campbell, Doughlas, and John Barnes. Macbeth II: The Themes of Macbeth. Chicago, Ill: Encyclopedia Britannica Educational Corporation, 1992.

MLA (9th ed.) Citation

Campbell, Doughlas, and John Barnes. Macbeth II: The Themes of Macbeth. Encyclopedia Britannica Educational Corporation, 1992.