Παραπομπή APA

Thirkettle, G. (1962). Wheldon's business statistics and statistical method/5e: Wheldon revised (5th ed.). Macdonald & Evans.

Παραπομπή Chicago Style

Thirkettle, G.L. Wheldon's Business Statistics and Statistical Method/5e: Wheldon Revised. 5th ed. London: Macdonald & Evans, 1962.

Παραπομπή MLA

Thirkettle, G.L. Wheldon's Business Statistics and Statistical Method/5e: Wheldon Revised. 5th ed. Macdonald & Evans, 1962.