APA
Herrera S., Garcia Conrado & The World Bank. (1999). User's guide to an early warning system for macroeconomic vulnerability in Latin American countries. Washigton: World Bank.
Chicago
Herrera Santiago, Garcia Conrado and The World Bank. 1999. User's guide to an early warning system for macroeconomic vulnerability in Latin American countries. Washigton: World Bank.
Harvard
Herrera S., Garcia Conrado and The World Bank. (1999). User's guide to an early warning system for macroeconomic vulnerability in Latin American countries. Washigton: World Bank.
MLA
Herrera Santiago, Garcia Conrado and The World Bank. User's guide to an early warning system for macroeconomic vulnerability in Latin American countries. Washigton: World Bank. 1999.