Christenson, C. J., Vancil, R. F., Marshall, P. W., Harlan, N. E., & Buchin, S. I. (1973). Managerial economics: Text and cases (Rev. ed.). Homewood, Ill.: Richard D. Irwin.

Christenson, Charles J., Richard F. Vancil, Paul W. Marshall, Neil E. Harlan, and Stanley I. Buchin. Managerial Economics: Text and Cases. Rev. ed. Homewood, Ill.: Richard D. Irwin, 1973.

Christenson, Charles J., et al. Managerial Economics: Text and Cases. Rev. ed. Homewood, Ill.: Richard D. Irwin, 1973.