Procedures for Obtaining Similarities Data

Coombs Clyde H. A Theory of Data. New York: John Wiley & Sons, 1964.

Green Paul E. and Carmone Frank J. Multidimensional Scaling and Related Techniques in Marketing Analysis. Boston: Allyn and Bacon, 1970.

Neidell Lester A. “Physician Perception and Evaluation of Selected Ethical Drugs: An Application of Nonmetric Multidimensional Scaling to Pharmaceutical Marketing,” unpublished doctoral dissertation, University of Pennsylvania, 1969.

Restle Frank . Psychology of Judgment and Choice. New York: John Wiley & Sons, 1961.

Taylor James R. and Kinnear Thomas C. “Empirical Comparison of Alternative Methods for Collecting Proximity Judgments,” Combined Proceedings. Spring and Fall Conferences, American Marketing Association, 1971, 547–50.

Torgerson Warren S. Theory and Methods of Scaling. New York: John Wiley & Sons, 1958.