APA (7th ed.) Citation

Cole, J. P., & Schoonmaker, O. (2005). Military Instructors Manual. Project Gutenberg.

Chicago Style (17th ed.) Citation

Cole, J. P., and Oliver Schoonmaker. Military Instructors Manual. Project Gutenberg, 2005.

MLA (9th ed.) Citation

Cole, J. P., and Oliver Schoonmaker. Military Instructors Manual. Project Gutenberg, 2005.

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