APA (7th ed.) Citation

Morris, G., & Chapman, C. S. (2007). If You Touch Them They Vanish. Project Gutenberg.

Chicago Style (17th ed.) Citation

Morris, Gouverneur, and Charles Shepard Chapman. If You Touch Them They Vanish. Project Gutenberg, 2007.

MLA (9th ed.) Citation

Morris, Gouverneur, and Charles Shepard Chapman. If You Touch Them They Vanish. Project Gutenberg, 2007.

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