APA (7th ed.) Citation

Hacht, A. M., & Hayes, D. D. Gale encyclopedia of world history: Governments.

Chicago Style (17th ed.) Citation

Hacht, Anne Marie, and Dwayne D. Hayes. Gale Encyclopedia of World History: Governments.

MLA (8th ed.) Citation

Hacht, Anne Marie, and Dwayne D. Hayes. Gale Encyclopedia of World History: Governments.

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