Dyfyniad APA

Greenaway, D. (1979). Protectionism again...? London: The Institute of Economic Affairs.

Dyfyniad Arddull Chicago

Greenaway, David. Protectionism Again...? London: The Institute of Economic Affairs, 1979.

Dyfyniad MLA

Greenaway, David. Protectionism Again...? London: The Institute of Economic Affairs, 1979.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.