Makin, P. J., Cooper, C. L., & Cox, C. (1999). Organizations and the psychological contract: Managing people at work. Quorum Books ; Universities Press.

Makin, Peter J., Cary L. Cooper, and Charles Cox. Organizations and the Psychological Contract: Managing People at Work. Westport, Conn. : Hyderabad: Quorum Books ; Universities Press, 1999.

Makin, Peter J., et al. Organizations and the Psychological Contract: Managing People at Work. Quorum Books ; Universities Press, 1999.