Thirkettle, G. (1962). Wheldon's business statistics and statistical method/5e: Wheldon revised (5th ed.). Macdonald & Evans.
استشهاد بنمط شيكاغوThirkettle, G.L. Wheldon's Business Statistics and Statistical Method/5e: Wheldon Revised. 5th ed. London: Macdonald & Evans, 1962.
MLA استشهادThirkettle, G.L. Wheldon's Business Statistics and Statistical Method/5e: Wheldon Revised. 5th ed. Macdonald & Evans, 1962.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.