Halvorson, H. G., & Heidi Grant Halvorson. (2017). Chín 9 things successful people do differently. Boston: Harvard Business Review.
استشهاد بنمط شيكاغوHalvorson, Heidi Grant, و Heidi Grant Halvorson. Chín 9 Things Successful People Do Differently. Boston: Harvard Business Review, 2017.
MLA استشهادHalvorson, Heidi Grant, و Heidi Grant Halvorson. Chín 9 Things Successful People Do Differently. Boston: Harvard Business Review, 2017.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.