एपीए उद्धरण

(1990). CCNP practical studies troubleshooting. [S.l.]: [s.n.].

शिकागो स्टाइल उद्धरण

CCNP Practical Studies Troubleshooting. [S.l.]: [s.n.], 1990.

एमएलए उद्धरण

CCNP Practical Studies Troubleshooting. [S.l.]: [s.n.], 1990.