Greenaway, D., & Milner, C. (1979). Protectionism again?: Causes and consequences of a retreat from freer trade. Institute of Economic Affairs.
Chicago-viite (17. p.)Greenaway, David, ja Christopher Milner. Protectionism Again?: Causes and Consequences of a Retreat from Freer Trade. London: Institute of Economic Affairs, 1979.
MLA-viite (9. p.)Greenaway, David, ja Christopher Milner. Protectionism Again?: Causes and Consequences of a Retreat from Freer Trade. Institute of Economic Affairs, 1979.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.