APA

Parkhurst W. R., . (1999). Cisco Router OSPF. New Delhi: Tata McGraw-Hill.

Chicago

Parkhurst William R, . 1999. Cisco Router OSPF. New Delhi: Tata McGraw-Hill.

Harvard

Parkhurst W. R., . (1999). Cisco Router OSPF. New Delhi: Tata McGraw-Hill.

MLA

Parkhurst William R, . Cisco Router OSPF. New Delhi: Tata McGraw-Hill. 1999.