Παραπομπή APA

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

Παραπομπή Chicago Style

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

Παραπομπή MLA

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