Calpin, M. (1984). Understanding audits and audit reports (4th ed.). Canadian Institute of Chartered Accountants.
Cita Chicago (17th ed.)Calpin, Martin. Understanding Audits and Audit Reports. 4th ed. Toronto, Ont.: Canadian Institute of Chartered Accountants, 1984.
Cita MLA (8th ed.)Calpin, Martin. Understanding Audits and Audit Reports. 4th ed. Canadian Institute of Chartered Accountants, 1984.
Atenció: Aquestes cites poden no estar 100% correctes.