Amoeba quality of bottled water in carboy of the metropolitan area of Mexico City Yazar: Ramírez Flores, Elizabeth, Robles Valderrama, Esperanza del Socorro, Sáinz Morales, María De Guadalupe, Martínez Rodríguez, Blanca Nieves, Vargas Cerón, Brian Guadalupe, Ramírez Flores, Miguel Ángel