Luck, D. J., & Ferrell, O. C. (1985). Marketing strategy and plans (2nd ed.). Prentice-Hall.
Cita Chicago (17th ed.)Luck, David Johnston, i O. C. Ferrell. Marketing Strategy and Plans. 2nd ed. Englewood Cliffs, N.J.: Prentice-Hall, 1985.
Cita MLA (9th ed.)Luck, David Johnston, i O. C. Ferrell. Marketing Strategy and Plans. 2nd ed. Prentice-Hall, 1985.
Atenció: Aquestes cites poden no estar 100% correctes.