Cita APA (7a ed.)

Hartley, K. (1977). Problems of economic policy. Allen & Unwin.

Cita Chicago Style (17a ed.)

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

Cita MLA (9a ed.)

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