Παραπομπή APA

(1999). CCNP Cisco Certified Network Professional test yourself practice exams. Berkeley, California: Osborne McGraw-Hill.

Παραπομπή Chicago Style

CCNP Cisco Certified Network Professional Test Yourself Practice Exams. Berkeley, California: Osborne McGraw-Hill, 1999.

Παραπομπή MLA

CCNP Cisco Certified Network Professional Test Yourself Practice Exams. Berkeley, California: Osborne McGraw-Hill, 1999.

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