Παραπομπή σε μορφή APA (7η εκδ.)

(2007). The IT professional's business and communications guide: A real-world approach to Comp TIA A+ soft skills / Steven Johnson.

Παραπομπή σε μορφή Chicago (17η εκδ.)

The IT Professional's Business and Communications Guide: A Real-world Approach to Comp TIA A+ Soft Skills / Steven Johnson. 2007.

Παραπομπή σε μορφή MLA (9th εκδ.)

The IT Professional's Business and Communications Guide: A Real-world Approach to Comp TIA A+ Soft Skills / Steven Johnson. 2007.