APA (7th ed.) Citation

Cristobal, A. E. (1999). The world as we made it. Unitas.

Chicago Style (17th ed.) Citation

Cristobal, Adrian E. "The World as We Made It." Unitas 1999.

MLA (9th ed.) Citation

Cristobal, Adrian E. "The World as We Made It." Unitas, 1999.

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