Message from the President of the United State

UANL

Elementos of geometry and trigonometry : from the works of A.M. Legendre, adapted to the course of mathematical instruction in the United State

UANL

Diversidad de macromicetos en el Estado de Tamaulipas, México Diversity of macrofungi in the Tamaulipas State, México.

Tesis (Doctor en Ciencias con Especialidad en Manejo de Recursos Naturales) UANL, 2013.