एपीए उद्धरण

William Bolton (1933-. (1991). Industrial control and instrumentation. London: Longman.

शिकागो स्टाइल उद्धरण

William Bolton (1933-. Industrial Control and Instrumentation. London: Longman, 1991.

एमएलए उद्धरण

William Bolton (1933-. Industrial Control and Instrumentation. London: Longman, 1991.