APA (7th ed.) Citation

McGuffey, W. H. (2005). McGuffey's Sixth Eclectic Reader. Project Gutenberg.

Chicago Style (17th ed.) Citation

McGuffey, William Holmes. McGuffey's Sixth Eclectic Reader. Project Gutenberg, 2005.

MLA (9th ed.) Citation

McGuffey, William Holmes. McGuffey's Sixth Eclectic Reader. Project Gutenberg, 2005.

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