MALAGHAN MICHAEL G. (2005). MAKING MILLIONS IN DIRECT SALES. MCGRAW-HILL.
Cita Chicago (17th ed.)MALAGHAN MICHAEL G. MAKING MILLIONS IN DIRECT SALES. NEW YORK: MCGRAW-HILL, 2005.
Cita MLA (9th ed.)MALAGHAN MICHAEL G. MAKING MILLIONS IN DIRECT SALES. MCGRAW-HILL, 2005.
Atenció: Aquestes cites poden no estar 100% correctes.