DANIELS , A. (1986). BASIC SYSTEM ANALYSIS. GALGOTIA PUB. PVT. LTD.
Cita Chicago (17th ed.)DANIELS , A.,YEATES. BASIC SYSTEM ANALYSIS. GALGOTIA PUB. PVT. LTD, 1986.
Cita MLA (9th ed.)DANIELS , A.,YEATES. BASIC SYSTEM ANALYSIS. GALGOTIA PUB. PVT. LTD, 1986.
Atenció: Aquestes cites poden no estar 100% correctes.