Leithold,Louis. (1978). Essentials of calculus for business and economics. Harper and Row.
استشهاد بنمط شيكاغوLeithold,Louis. Essentials of Calculus for Business and Economics. New York: Harper and Row, 1978.
MLA استشهادLeithold,Louis. Essentials of Calculus for Business and Economics. Harper and Row, 1978.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.