Valverde, R. (2013). Availability, distribution, quality and perspectives of water in Costa Rica.
Chicago-стиль цитированияValverde, Ricardo. Availability, Distribution, Quality and Perspectives of Water in Costa Rica. 2013.
MLA-цитированиеValverde, Ricardo. Availability, Distribution, Quality and Perspectives of Water in Costa Rica. 2013.
Предупреждение: эти цитированмия не могут быть всегда правильны на 100%.