References

• Maslow, Abraham. Motivation and Personality. New York: Harper & Brothers, 1954.
• Ogilvy, David. Confessions of an Advertising Man. New York: Random H. Wolff, 1963.
• Ogilvy, David. Ogilvy on Advertising. New York: Random House, 1985.
• Weiss, Michael J. The Clustering of America. New York: Harper & Row, 1989.