एपीए उद्धरण

Nobbs, J. (1973). Economics for advanced level. McGraw Hill.

शिकागो स्टाइल उद्धरण

Nobbs, Jack. Economics for Advanced Level. London: McGraw Hill, 1973.

एमएलए उद्धरण

Nobbs, Jack. Economics for Advanced Level. McGraw Hill, 1973.