APA-viite (7. p.)

Duff, L. (1997). The economics of governments and markets: New directions in European public policy. Longman.

Chicago-viite (17. p.)

Duff, Lois. The Economics of Governments and Markets: New Directions in European Public Policy. London: Longman, 1997.

MLA-viite (9. p.)

Duff, Lois. The Economics of Governments and Markets: New Directions in European Public Policy. Longman, 1997.