APA (7th ed.) Citation

Delury & Schlager. (2006). World encyclopedia of political systems and parties (4th ed.). Facts on file.

Chicago Style (17th ed.) Citation

Delury and Schlager. World Encyclopedia of Political Systems and Parties. 4th ed. New York, NY: Facts on file, 2006.

MLA (9th ed.) Citation

Delury and Schlager. World Encyclopedia of Political Systems and Parties. 4th ed. Facts on file, 2006.

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