APA استشهاد

Ayrer, R. (2011). The Essence of Professional Issues in Computing. Perason.

استشهاد بنمط شيكاغو

Ayrer, Robert. The Essence of Professional Issues in Computing. New delhi: Perason, 2011.

MLA استشهاد

Ayrer, Robert. The Essence of Professional Issues in Computing. Perason, 2011.