Influence of functional groups of activated carbon in the anchoring of iron particles by forced hydrolysis and its use to remove hexavalent chromiun from aqueous solutions.

Tesis (Master of Science with orientation in Sustainable Processes) UANL, 2014.

The national fourth reader containg a course of instruction in elocution; exercises in reading and declamation, and copious notes...

UANL

School Reading by Grades Second Year

UANL

Books and reading; by Brother Azarias of the Brothers of the Christian schools

UANL