APA (7th ed.) Citation

Duverger, M., & Sartori, G. (1988). Los sistemas electorales.

Chicago Style (17th ed.) Citation

Duverger, Maurice, and Giovanni Sartori. Los Sistemas Electorales. San José, 1988.

MLA (9th ed.) Citation

Duverger, Maurice, and Giovanni Sartori. Los Sistemas Electorales. 1988.

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