APA (7th ed.) Citation

O?Toole, D. (2008). 1000 events that shaped the world (1st trade ed.). National Geographic.

Chicago Style (17th ed.) Citation

O?Toole, Dan. 1000 Events That Shaped the World. 1st trade ed. Washington, D.C.: National Geographic, 2008.

MLA (9th ed.) Citation

O?Toole, Dan. 1000 Events That Shaped the World. 1st trade ed. National Geographic, 2008.

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