APA

Johnson (Steve), . (2007). The IT Professionals Business and Communications Guide: A Real-World Approach to Comp TIA A+ Soft Skills. : .

Chicago

Johnson (Steve), . 2007. The IT Professionals Business and Communications Guide: A Real-World Approach to Comp TIA A+ Soft Skills. : .

Harvard

Johnson (Steve), . (2007). The IT Professionals Business and Communications Guide: A Real-World Approach to Comp TIA A+ Soft Skills. : .

MLA

Johnson (Steve), . The IT Professionals Business and Communications Guide: A Real-World Approach to Comp TIA A+ Soft Skills. : . 2007.