APA (7th ed.) Citation

Shakespeare, W., & Crowther, J. (2004). Richard III. SparkNotes.

Chicago Style (17th ed.) Citation

Shakespeare, William, and John Crowther. Richard III. New York: SparkNotes, 2004.

MLA (9th ed.) Citation

Shakespeare, William, and John Crowther. Richard III. SparkNotes, 2004.

Warning: These citations may not always be 100% accurate.