Tushingham, F. (1956). Course in business economics and commerce/9e (9th ed.). Sir Isaac Pitman & Sons.
استشهاد بنمط شيكاغوTushingham, F.P. Course in Business Economics and Commerce/9e. 9th ed. London: Sir Isaac Pitman & Sons, 1956.
MLA استشهادTushingham, F.P. Course in Business Economics and Commerce/9e. 9th ed. Sir Isaac Pitman & Sons, 1956.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.