APA (7th ed.) Citation

Lincoln, N. S. (2006). I Spy. Project Gutenberg.

Chicago Style (17th ed.) Citation

Lincoln, Natalie Sumner. I Spy. Project Gutenberg, 2006.

MLA (9th ed.) Citation

Lincoln, Natalie Sumner. I Spy. Project Gutenberg, 2006.

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