APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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