APA (7th ed.) Citation

Helm, D. (1989). The economic borders of the state / edited by Dieter Helm. Oxford University Press.

Chicago Style (17th ed.) Citation

Helm, Dieter. The Economic Borders of the State / Edited by Dieter Helm. Oxford: Oxford University Press, 1989.

MLA (9th ed.) Citation

Helm, Dieter. The Economic Borders of the State / Edited by Dieter Helm. Oxford University Press, 1989.

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