Παραπομπή σε μορφή APA (7η εκδ.)

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

Παραπομπή σε μορφή Chicago (17η εκδ.)

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

Παραπομπή σε μορφή MLA (9th εκδ.)

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