APA সাইটেশন

Gellhorn,Walter. (1950). Security,loyalty and science. cornell university press.

শিকাগো স্টাইলে সাইটেশন

Gellhorn,Walter. Security,loyalty and Science. NewYork: cornell university press, 1950.

এমএলএ সাইটেশন

Gellhorn,Walter. Security,loyalty and Science. cornell university press, 1950.