APA (7th ed.) Citation

Nowlan, P. F., & Paul, F. R. (2008). The Airlords of Han. Project Gutenberg.

Chicago Style (17th ed.) Citation

Nowlan, Philip Francis, and Frank R. Paul. The Airlords of Han. Project Gutenberg, 2008.

MLA (9th ed.) Citation

Nowlan, Philip Francis, and Frank R. Paul. The Airlords of Han. Project Gutenberg, 2008.

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