Cita APA

Hopkins, W. J. (1894). Telephone lines and their properties (New ed., rev. and enl.). Longmans, Green.

Citación estilo Chicago

Hopkins, William John. Telephone Lines and Their Properties. New ed., rev. and enl. New York: Longmans, Green, 1894.

Cita MLA

Hopkins, William John. Telephone Lines and Their Properties. New ed., rev. and enl. Longmans, Green, 1894.