Cita APA (7a ed.)

Biswas, N. (2000). Principles of Telephony. Radient Books.

Cita Chicago Style (17a ed.)

Biswas, N.N. Principles of Telephony. India: Radient Books, 2000.

Cita MLA (9a ed.)

Biswas, N.N. Principles of Telephony. Radient Books, 2000.