APA (7th ed.) Citation

Vail, H. H. (2005). A History of the McGuffey Readers. Project Gutenberg.

Chicago Style (17th ed.) Citation

Vail, Henry Hobart. A History of the McGuffey Readers. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Vail, Henry Hobart. A History of the McGuffey Readers. Project Gutenberg, 2005.

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