Urban, G. L., & Star, S. H. (1991). Advanced marketing strategy: Phenomena, analysis and decisions. Prentice-Hall.
Cita Chicago (17th ed.)Urban, Glen L., i Steven H. Star. Advanced Marketing Strategy: Phenomena, Analysis and Decisions. Englewood Cliffs, N.J: Prentice-Hall, 1991.
Cita MLA (9th ed.)Urban, Glen L., i Steven H. Star. Advanced Marketing Strategy: Phenomena, Analysis and Decisions. Prentice-Hall, 1991.
Atenció: Aquestes cites poden no estar 100% correctes.