APA (7th ed.) Citation

Long, H. (1989). 21 techniques of silent killing. Paladin Pr.

Chicago Style (17th ed.) Citation

Long, Hei. 21 Techniques of Silent Killing. Boulder, Colo: Paladin Pr, 1989.

MLA (8th ed.) Citation

Long, Hei. 21 Techniques of Silent Killing. Paladin Pr, 1989.

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