SKIDMORE STEVE. (1992). INTRODUCING SYSTEMS ANALYSIS (1ST.). BPB PUBLICATIONS.
Cita Chicago (17th ed.)SKIDMORE STEVE. INTRODUCING SYSTEMS ANALYSIS. 1ST. NE DELHI: BPB PUBLICATIONS, 1992.
Cita MLA (9th ed.)SKIDMORE STEVE. INTRODUCING SYSTEMS ANALYSIS. 1ST. BPB PUBLICATIONS, 1992.
Atenció: Aquestes cites poden no estar 100% correctes.