Ramírez-de León, J. A., & Uresti-Marín, R. M. (2006). Preserving the quality of water is preserving health. Universidad Autónoma de Tamaulipas.
Chicago Style aipamenaRamírez-de León, José Alberto, and Rocío Margarita Uresti-Marín. Preserving the Quality of Water Is Preserving Health. Universidad Autónoma de Tamaulipas, 2006.
MLA aipamenaRamírez-de León, José Alberto, and Rocío Margarita Uresti-Marín. Preserving the Quality of Water Is Preserving Health. Universidad Autónoma de Tamaulipas, 2006.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.