एपीए उद्धरण

Keys, T. E. (1944). IN FURTHERANCE OF RESEARCH; FREE MICROFILM COPYING.

शिकागो स्टाइल उद्धरण

Keys, Thomas E. IN FURTHERANCE OF RESEARCH; FREE MICROFILM COPYING. 1944.

एमएलए उद्धरण

Keys, Thomas E. IN FURTHERANCE OF RESEARCH; FREE MICROFILM COPYING. 1944.