एपीए उद्धरण

(1969). A history of technology and invention: Progress through the ages. London: John Murray.

शिकागो स्टाइल उद्धरण

A History of Technology and Invention: Progress Through the Ages. London: John Murray, 1969.

एमएलए उद्धरण

A History of Technology and Invention: Progress Through the Ages. London: John Murray, 1969.