Cita APA (7a ed.)

Biswas, N. N. (1993). Principles of telegraphy.

Cita Chicago Style (17a ed.)

Biswas, Nripendra N. Principles of Telegraphy. New Delhi : Media promoters & Publishers, 1993.

Cita MLA (9a ed.)

Biswas, Nripendra N. Principles of Telegraphy. 1993.