Business World. (2011). The SME Whitebook 2011-2012. Express Building.
Cita Chicago (17th ed.)Business World. The SME Whitebook 2011-2012. Express Building, 2011.
Cita MLA (9th ed.)Business World. The SME Whitebook 2011-2012. Express Building, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.