Maitland, I. (1992). The Business Planner. ELSEVIER.
Cita Chicago (17th ed.)Maitland, Iain. The Business Planner. ELSEVIER, 1992.
Cita MLA (8th ed.)Maitland, Iain. The Business Planner. ELSEVIER, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.