References

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Ford, L. R., Jr., and Fulkerson, D. R. Flows in Networks . Princeton, NJ: Princeton University Press, 1962.

Hillier, F. S., and Lieberman, G. J. Operations Research , 4th ed. San Francisco: Holden-Day, 1986.

Hu, T. C. Integer Programming and Network Flows . Reading, MA: Addison-Wesley, 1969.

Trueman, R. E. Quantitative Methods for Decision Making in Business . Hinsdale, IL: The Dryden Press, 1981.