FRISCH AELEEN. (2011). ESSENTIAL SYSTEM ADMINISTRATION. SHROFF PUBL.
Cita Chicago (17th ed.)FRISCH AELEEN. ESSENTIAL SYSTEM ADMINISTRATION. SHROFF PUBL: SHROFF PUBL, 2011.
Cita MLA (9th ed.)FRISCH AELEEN. ESSENTIAL SYSTEM ADMINISTRATION. SHROFF PUBL, 2011.
Atenció: Aquestes cites poden no estar 100% correctes.