Letchford, S. (1994). Statistics for accountants. Chapman and Hall.
Cita Chicago (17th ed.)Letchford, Stanley. Statistics for Accountants. Londres: Chapman and Hall, 1994.
Cita MLA (9th ed.)Letchford, Stanley. Statistics for Accountants. Chapman and Hall, 1994.
Atenció: Aquestes cites poden no estar 100% correctes.