APA (7th ed.) Citation

Delury, G. E. (1987). World encyclopedia of political systems & parties (2nd ed.). Facts on File Pub.

Chicago Style (17th ed.) Citation

Delury, George E. World Encyclopedia of Political Systems & Parties. 2nd ed. New York: Facts on File Pub, 1987.

MLA (9th ed.) Citation

Delury, George E. World Encyclopedia of Political Systems & Parties. 2nd ed. Facts on File Pub, 1987.