MLA

Chauhan, Sudhanshu, and Nutan Kumar Panda. Hacking Web Intelligence : Open Source Intelligence and Web Reconnaissance : Concepts and Techniques. Syngress, 2015.

APA

Chauhan, S., & Panda, N. Kumar. (2015). Hacking web intelligence : open source intelligence and web reconnaissance : concepts and techniques. Syngress.

Chicago

Chauhan, Sudhanshu, and Nutan Kumar Panda. Hacking Web Intelligence : Open Source Intelligence and Web Reconnaissance : Concepts and Techniques. : Syngress, 2015.