APA

Gupta N. K., . (2000). The Businessof telecommunication. New Delhi: Tata Mc graw Hill.

Chicago

Gupta Niraj K, . 2000. The Businessof telecommunication. New Delhi: Tata Mc graw Hill.

Harvard

Gupta N. K., . (2000). The Businessof telecommunication. New Delhi: Tata Mc graw Hill.

MLA

Gupta Niraj K, . The Businessof telecommunication. New Delhi: Tata Mc graw Hill. 2000.