APA
Vibha Khanna/17, Munish Bhagat & Suman Chadha/16 S. M. (1999). Telephone- Line Integrated Generic Switching System. : .
Chicago
Vibha Khanna/17, Munish Bhagat and Suman Chadha/16 Shipra Malhotra. 1999. Telephone- Line Integrated Generic Switching System. : .
Harvard
Vibha Khanna/17, Munish Bhagat and Suman Chadha/16 S. M. (1999). Telephone- Line Integrated Generic Switching System. : .
MLA
Vibha Khanna/17, Munish Bhagat and Suman Chadha/16 Shipra Malhotra. Telephone- Line Integrated Generic Switching System. : . 1999.