APA Citation

(2007). Summa: El mundo en 2007. San José, Costa Rica: Summa Media Group.

Chicago Style Citation

Summa: El Mundo En 2007. San José, Costa Rica: Summa Media Group, 2007.

MLA Citation

Summa: El Mundo En 2007. San José, Costa Rica: Summa Media Group, 2007.

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