APA (7th ed.) Citation

(1980). The European Free Trade Association (2nd ed.). Efta.

Chicago Style (17th ed.) Citation

The European Free Trade Association. 2nd ed. Efta, 1980.

MLA (9th ed.) Citation

The European Free Trade Association. 2nd ed. Efta, 1980.

Warning: These citations may not always be 100% accurate.