APA (7th ed.) Citation

Stratton-Porter, G. (1996). The Song of the Cardinal. Project Gutenberg.

Chicago Style (17th ed.) Citation

Stratton-Porter, Gene. The Song of the Cardinal. Project Gutenberg, 1996.

MLA (9th ed.) Citation

Stratton-Porter, Gene. The Song of the Cardinal. Project Gutenberg, 1996.

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