एपीए उद्धरण

Hartley, K. (1977). Problems of Economic Policy. Allen & Unwin.

शिकागो स्टाइल उद्धरण

Hartley, Keith. Problems of Economic Policy. London: Allen & Unwin, 1977.

एमएलए उद्धरण

Hartley, Keith. Problems of Economic Policy. Allen & Unwin, 1977.