Oxenfeldt, A. R., & Baumol, W. J. (1963). Conference on Appraisal of the Marke Models of price theory was held in Harriman, New York on April 2-4,1962.Models of Markets. New York: Columbia University press.

Oxenfeldt, Alfred R., and William J. Baumol. Conference On Appraisal of the Marke Models of Price Theory Was Held in Harriman, New York On April 2-4,1962.Models of Markets. New York: Columbia University press, 1963.

Oxenfeldt, Alfred R., and William J. Baumol. Conference On Appraisal of the Marke Models of Price Theory Was Held in Harriman, New York On April 2-4,1962.Models of Markets. New York: Columbia University press, 1963.