एपीए उद्धरण

Garnet, R. W. (1985). The Telephone Enterprise: The Evolution of the Bell System's Horizontal Structure, 1876-1909. Baltimore: The Johns Hopkins University Press.

शिकागो स्टाइल उद्धरण

Garnet, Robert W. The Telephone Enterprise: The Evolution of the Bell System's Horizontal Structure, 1876-1909. Baltimore: The Johns Hopkins University Press, 1985.

एमएलए उद्धरण

Garnet, Robert W. The Telephone Enterprise: The Evolution of the Bell System's Horizontal Structure, 1876-1909. Baltimore: The Johns Hopkins University Press, 1985.

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