एपीए उद्धरण

Topping, J. (1971). Errors of observation and their treatment (3rd ed.). London.

शिकागो स्टाइल उद्धरण

Topping, J. Errors of Observation and Their Treatment. 3rd ed. London, 1971.

एमएलए उद्धरण

Topping, J. Errors of Observation and Their Treatment. 3rd ed. London, 1971.