MLA

Steffens. Attribution of Advanced Persistent Threats: How to Identify the Actors Behind Cyber-espionage. Springer Berlin Heidelberg, 2020.

APA

Steffens, S. (2020). Attribution of Advanced Persistent Threats: How to Identify the Actors Behind Cyber-Espionage. Springer Berlin Heidelberg.

Chicago

Steffens Attribution of Advanced Persistent Threats: How to Identify the Actors Behind Cyber-Espionage. : Springer Berlin Heidelberg, 2020.