Citação norma APA

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

Citação norma Chicago

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

Citação norma MLA

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

Nota: a formatação da citação pode não corresponder 100% ao definido pela respectiva norma.