Gaya APA
Allen., O, H, T, B, K. (2016).
CISA: Certified Information Systems Auditor study guide .
Canada:
Sybex A wiley Brand.
Gaya MLA
Allen., O', Hara,, T., Brian., Keele,.
"CISA: Certified Information Systems Auditor study guide".
Canada:
Sybex A wiley Brand,
2016.
Text.