APA (7th ed.) Citation

(2017). Cyber warfare in the 21st century: Threats, challenges, and opportunities. U.S. Government Publishing Office.

Chicago Style (17th ed.) Citation

Cyber Warfare in the 21st Century: Threats, Challenges, and Opportunities. Washington: U.S. Government Publishing Office, 2017.

MLA (8th ed.) Citation

Cyber Warfare in the 21st Century: Threats, Challenges, and Opportunities. U.S. Government Publishing Office, 2017.

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