APA استشهاد

Ros jay. (1999). The seven deadly skills for management. Thomson learning pvtltd.

استشهاد بنمط شيكاغو

Ros jay. The Seven Deadly Skills for Management. London: Thomson learning pvtltd, 1999.

MLA استشهاد

Ros jay. The Seven Deadly Skills for Management. Thomson learning pvtltd, 1999.