APA

"Swaminathan (C) R. (. N. S. (. S. &. M. G., Sanjeevi Ramanathan, . (1997). Embedded Call Billing for Epabx Systems. : .

Chicago

"Swaminathan (C) Rameshkumar (S N) Srinivasan (C S) & Mathew George", Sanjeevi Ramanathan, . 1997. Embedded Call Billing for Epabx Systems. : .

Harvard

"Swaminathan (C) R. (. N. S. (. S. &. M. G., Sanjeevi Ramanathan, . (1997). Embedded Call Billing for Epabx Systems. : .

MLA

"Swaminathan (C) Rameshkumar (S N) Srinivasan (C S) & Mathew George", Sanjeevi Ramanathan, . Embedded Call Billing for Epabx Systems. : . 1997.