APA Style

Edwards, M, R., Ewen, A, J. (1996). 360 Degree Feedback: The Powerul New Model for Employee Assesment & Performance Improvement . New York: Amacom.

MLA Style

Edwards, Mark, R.., Ewen, Ann, J.. "360 Degree Feedback: The Powerul New Model for Employee Assesment & Performance Improvement". New York: Amacom, 1996. Manajemen.