Rudimentary economics for schools and colleges

UANL

A latin grammar for Schools and colleges

UANL

Gramaire d'apres la methode experimentale a lusage de l'eseignement primaire et des classes elementaires des lycees et colleges

UANL

Graphics for engineers, architects, and builders : a manual for designers, and a text-book for technical school, trussesand arches analyzed and descussed by graphical methods

UANL