Cita APA (7th ed.)

ebrary, Inc, & Krishna-Hensel, S. F. (2012). New security frontiers: Critical energy and the resource challenge. Ashgate.

Cita Chicago (17th ed.)

ebrary, Inc, i Sai Felicia Krishna-Hensel. New Security Frontiers: Critical Energy and the Resource Challenge. Farnham ; Burlington, Vt.: Ashgate, 2012.

Cita MLA (9th ed.)

ebrary, Inc, i Sai Felicia Krishna-Hensel. New Security Frontiers: Critical Energy and the Resource Challenge. Ashgate, 2012.