एपीए उद्धरण

Kaiser, A. K. (2020). Become ITIL Foundation Certified in 7 Days. Apress.

शिकागो स्टाइल उद्धरण

Kaiser, Abhinav Krishna. Become ITIL Foundation Certified in 7 Days. Apress, 2020.

एमएलए उद्धरण

Kaiser, Abhinav Krishna. Become ITIL Foundation Certified in 7 Days. Apress, 2020.