APA (7th ed.) Citation

McGuire, J. J., & Piper, H. B. (2006). Hunter Patrol. Project Gutenberg.

Chicago Style (17th ed.) Citation

McGuire, John Joseph, and H. Beam Piper. Hunter Patrol. Project Gutenberg, 2006.

MLA (9th ed.) Citation

McGuire, John Joseph, and H. Beam Piper. Hunter Patrol. Project Gutenberg, 2006.

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