Lusch, R. F., & Lusch, V. N. (1987). Principles of marketing. Kent Pub. Co.
Cita Chicago (17th ed.)Lusch, Robert F., i Virginia N. Lusch. Principles of Marketing. Boston, Mass: Kent Pub. Co, 1987.
Cita MLA (9th ed.)Lusch, Robert F., i Virginia N. Lusch. Principles of Marketing. Kent Pub. Co, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.