APA (7th ed.) Citation

Cawein, M. J. (2010). Shapes and Shadows. Project Gutenberg.

Chicago Style (17th ed.) Citation

Cawein, Madison Julius. Shapes and Shadows. Project Gutenberg, 2010.

MLA (9th ed.) Citation

Cawein, Madison Julius. Shapes and Shadows. Project Gutenberg, 2010.

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