APA
Pinto S. S. S. A. P. P., D Souza A. P. P. & IBM Global Services India (P) Ltd. (2003). Billing automation system. Bangalore: .
Chicago
Pinto Smitha Selma;D Souza Anil P Prakash, D Souza Anil P Prakash and IBM Global Services India (P) Ltd. 2003. Billing automation system. Bangalore: .
Harvard
Pinto S. S. S. A. P. P., D Souza A. P. P. and IBM Global Services India (P) Ltd. (2003). Billing automation system. Bangalore: .
MLA
Pinto Smitha Selma;D Souza Anil P Prakash, D Souza Anil P Prakash and IBM Global Services India (P) Ltd. Billing automation system. Bangalore: . 2003.
