एपीए उद्धरण

Pierce, J. R. (1981). Signals: The telephone and beyond. San Francisco: W. H. Freeman and Company.

शिकागो स्टाइल उद्धरण

Pierce, John R. Signals: The Telephone and Beyond. San Francisco: W. H. Freeman and Company, 1981.

एमएलए उद्धरण

Pierce, John R. Signals: The Telephone and Beyond. San Francisco: W. H. Freeman and Company, 1981.