Halvorson, H. G. (2012). Nine things successful people do differently (1.). Harvard business review press.
استشهاد بنمط شيكاغوHalvorson, Heidi Grant. Nine Things Successful People Do Differently. 1. Boston: Harvard business review press, 2012.
MLA استشهادHalvorson, Heidi Grant. Nine Things Successful People Do Differently. 1. Harvard business review press, 2012.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.