APA Citation

Valverde, R. (2002). Activity control. San Carlos, Costa Rica: R. Valverde.

Chicago Style Citation

Valverde, Roberto. Activity Control. San Carlos, Costa Rica: R. Valverde, 2002.

MLA Citation

Valverde, Roberto. Activity Control. San Carlos, Costa Rica: R. Valverde, 2002.

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