APA (7th ed.) Citation

Bova, B., & Schelling, G. L. (2009). The Next Logical Step. Project Gutenberg.

Chicago Style (17th ed.) Citation

Bova, Ben, and George Luther Schelling. The Next Logical Step. Project Gutenberg, 2009.

MLA (9th ed.) Citation

Bova, Ben, and George Luther Schelling. The Next Logical Step. Project Gutenberg, 2009.

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