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Tesis (Maestría con Especialidad en Ciencias Animal) U.A.A.A.N.

México and the United States; a study of subjects affecting their polítical, commercial and social relations, made with a view to their promotion

UANL

México, and the United States; their mutual relations and common interests 7

UANL

Annales de Domingo Francisco de San Anton Chimalpahin Cuauhtlehuanitzin, sixieme et septieme relations (1258-1612)

UANL