APA Style
Omar, S., Joseph, M. (2017).
CCNA Cyber Ops SECOPS 210-255 Official Cert Guide (First Edition).
Indianapolis:
Cisco Press.
MLA Style
Omar, Santos., Joseph, Muniz.
"CCNA Cyber Ops SECOPS 210-255 Official Cert Guide".
First Edition
Indianapolis:
Cisco Press,
2017.
Text.