APA (7th ed.) Citation

Carpenter. (2001). NATO enters the 21st century. Frank Cass.

Chicago Style (17th ed.) Citation

Carpenter. NATO Enters the 21st Century. London: Frank Cass, 2001.

MLA (8th ed.) Citation

Carpenter. NATO Enters the 21st Century. Frank Cass, 2001.

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