APA Style

Assen, M, V. et al (2009). Key Management Models : The 60 Models Every Manager Needs to Know (2nd Edition) (2). London: Prentice Hill.

MLA Style

Assen, Marcel, Van. et al. "Key Management Models : The 60 Models Every Manager Needs to Know (2nd Edition)". 2 London: Prentice Hill, 2009. Text.