एपीए उद्धरण

(1971). Technology forecast for 1980. New York: Van Nostrand Reinhold Co.

शिकागो स्टाइल उद्धरण

Technology Forecast for 1980. New York: Van Nostrand Reinhold Co, 1971.

एमएलए उद्धरण

Technology Forecast for 1980. New York: Van Nostrand Reinhold Co, 1971.