APA (7th ed.) Zitazioa

Greenaway, D., & Milner, C. (1979). Protectionism again?: Causes and consequences of a retreat from freer trade. Institute of Economic Affairs.

Chicago Style (17th ed.) Zitazioa

Greenaway, David, eta Christopher Milner. Protectionism Again?: Causes and Consequences of a Retreat from Freer Trade. London: Institute of Economic Affairs, 1979.

MLA (9th ed.) Zitazioa

Greenaway, David, eta Christopher Milner. Protectionism Again?: Causes and Consequences of a Retreat from Freer Trade. Institute of Economic Affairs, 1979.