APA (7th ed.) Citation

Shakespeare, W. (1997). The Tragedy of Macbeth. Project Gutenberg.

Chicago Style (17th ed.) Citation

Shakespeare, William. The Tragedy of Macbeth. Project Gutenberg, 1997.

MLA (9th ed.) Citation

Shakespeare, William. The Tragedy of Macbeth. Project Gutenberg, 1997.

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