Harper, W. (1982). Statistics. Macdonald and Evans.
Chicago Style (17th ed.) CitationHarper, W.M. Statistics. Plymouth: Macdonald and Evans, 1982.
MLA (9th ed.) CitationHarper, W.M. Statistics. Macdonald and Evans, 1982.
Advarsel: Disse citationer er muligvist ikke 100% nøjagtige.