APA (7th ed.) Citation

MacDonald, G. (2009). At the Back of the North Wind. Project Gutenberg.

Chicago Style (17th ed.) Citation

MacDonald, George. At the Back of the North Wind. Project Gutenberg, 2009.

MLA (9th ed.) Citation

MacDonald, George. At the Back of the North Wind. Project Gutenberg, 2009.

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