Biswas, N. N. (1964). Principles of telegraphy. Media promoters & Publishers.
Chicagoスタイル(17版)引用形式Biswas, Nripendra N. Principles of Telegraphy. New Delhi: Media promoters & Publishers, 1964.
MLA(9版)引用形式Biswas, Nripendra N. Principles of Telegraphy. Media promoters & Publishers, 1964.
警告: この引用は必ずしも正確ではありません.