APA (7th ed.) Citation

Shakespeare, W. (2010). Shakespeare's sonnets. Project Gutenberg.

Chicago Style (17th ed.) Citation

Shakespeare, William. Shakespeare's Sonnets. To be supplied: Project Gutenberg, 2010.

MLA (8th ed.) Citation

Shakespeare, William. Shakespeare's Sonnets. Project Gutenberg, 2010.

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