GALLO (Michael A.)/ HANCOCK (William M.), . (2011). Computer Communications and Networking Technologies. : Cengage Learning India Pvt. Ltd New Delhi.
GALLO (Michael A.)/ HANCOCK (William M.), . 2011. Computer Communications and Networking Technologies. : Cengage Learning India Pvt. Ltd New Delhi.
GALLO (Michael A.)/ HANCOCK (William M.), . Computer Communications and Networking Technologies. : Cengage Learning India Pvt. Ltd New Delhi. 2011.