APA استشهاد

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

استشهاد بنمط شيكاغو

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

MLA استشهاد

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