APA (7th ed.) Citation

Heywood, P. (1991). Spain's next five years: A political risk analysis. The Economist Intelligence Unit.

Chicago Style (17th ed.) Citation

Heywood, Paul. Spain's Next Five Years: A Political Risk Analysis. London: The Economist Intelligence Unit, 1991.

MLA (9th ed.) Citation

Heywood, Paul. Spain's Next Five Years: A Political Risk Analysis. The Economist Intelligence Unit, 1991.