(美)Todd Lammle著. (2001). CCNA: Cisco Certified Network Associate学习指南：英文原版. 电子工业出版社.
Chicago Style (17th ed.) Citation(美)Todd Lammle著. CCNA: Cisco Certified Network Associate学习指南：英文原版. 电子工业出版社, 2001.
MLA citiranje(美)Todd Lammle著. CCNA: Cisco Certified Network Associate学习指南：英文原版. 电子工业出版社, 2001.
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