UNDERWOOD JIM. (2002). COMPETITIVE INTELLIGENCE. CAPSTONE.
Cita Chicago (17th ed.)UNDERWOOD JIM. COMPETITIVE INTELLIGENCE. U K: CAPSTONE, 2002.
Cita MLA (9th ed.)UNDERWOOD JIM. COMPETITIVE INTELLIGENCE. CAPSTONE, 2002.
Atenció: Aquestes cites poden no estar 100% correctes.