Dyfyniad APA

Ramírez-de León, J. A., & Uresti-Marín, R. M. (2006). Preserving the quality of water is preserving health. Universidad Autónoma de Tamaulipas.

Dyfyniad Arddull Chicago

Ramírez-de León, José Alberto, and Rocío Margarita Uresti-Marín. Preserving the Quality of Water Is Preserving Health. Universidad Autónoma de Tamaulipas, 2006.

Dyfyniad MLA

Ramírez-de León, José Alberto, and Rocío Margarita Uresti-Marín. Preserving the Quality of Water Is Preserving Health. Universidad Autónoma de Tamaulipas, 2006.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.