APA Style

Sekaran, U., Bougie, R. (2013). Research methods for business : a skill-building approach. Sixth Edition (Sixth Edition). Chichester, West Sussex, UK: Wiley.

MLA Style

Sekaran, Uma., Bougie, Roger. "Research methods for business : a skill-building approach. Sixth Edition". Sixth Edition Chichester, West Sussex, UK: Wiley, 2013. Text.