DICK - LARKAM R. (1973). PROFIT IMPROVEMENT TECHNIQUES. GOWER.
Cita Chicago (17th ed.)DICK - LARKAM R. PROFIT IMPROVEMENT TECHNIQUES. ESSEX: GOWER, 1973.
Cita MLA (9th ed.)DICK - LARKAM R. PROFIT IMPROVEMENT TECHNIQUES. GOWER, 1973.
Atenció: Aquestes cites poden no estar 100% correctes.