IRWIN DAVID. (1998). MAKE YOUR BUSINESS GROW. INTERNATIONAL THOMSON BUSINESS PRESS.
Cita Chicago (17th ed.)IRWIN DAVID. MAKE YOUR BUSINESS GROW. LONDON: INTERNATIONAL THOMSON BUSINESS PRESS, 1998.
Cita MLA (9th ed.)IRWIN DAVID. MAKE YOUR BUSINESS GROW. INTERNATIONAL THOMSON BUSINESS PRESS, 1998.
Atenció: Aquestes cites poden no estar 100% correctes.