Ramírez-de León, J. A., & Uresti-Marín, R. M. (2006). Preserving the quality of water is preserving health. Universidad Autónoma de Tamaulipas.
Lua i Stíl Chicago (17ú heag.)Ramírez-de León, José Alberto, agus Rocío Margarita Uresti-Marín. Preserving the Quality of Water Is Preserving Health. Universidad Autónoma de Tamaulipas, 2006.
Lua MLA (8ú heag.)Ramírez-de León, José Alberto, agus Rocío Margarita Uresti-Marín. Preserving the Quality of Water Is Preserving Health. Universidad Autónoma de Tamaulipas, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.
