HARPER. (1991). Statistics (6th ed.). London: Pitmin/M & E.
Chicago Style CitationHARPER. Statistics. 6th ed. London: Pitmin/M & E, 1991.
MLA CitationHARPER. Statistics. 6th ed. London: Pitmin/M & E, 1991.
Warning: These citations may not always be 100% accurate.