Letchford, S., flavin, c., & starke, l. (1994). Statistics for accountants: Text in statistical science. Chapman & Hall.
Chicago-referens (17:e uppl.)Letchford, Stanley, christopher flavin, och linda starke. Statistics for Accountants: Text in Statistical Science. London: Chapman & Hall, 1994.
MLA-referens (9:e uppl.)Letchford, Stanley, et al. Statistics for Accountants: Text in Statistical Science. Chapman & Hall, 1994.