Cita APA

Jolley, E. (1992). Introduction to telephony and telegraphy. Y.P Chopra.

Citación estilo Chicago

Jolley, E.H. Introduction to Telephony and Telegraphy. Allahabad: Y.P Chopra, 1992.

Cita MLA

Jolley, E.H. Introduction to Telephony and Telegraphy. Y.P Chopra, 1992.

Warning: These citations may not always be 100% accurate.