1
by Barrios Villa, Erasmo
Oruro : [Univ. Técnica], 1966
Oruro : [Univ. Técnica], 1966
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Book
2
by Barrios Villa, Erasmo
Oruro, Bolivia : Editorial de la Universidad Técnica de Oruro, Bolivia, 1966
Oruro, Bolivia : Editorial de la Universidad Técnica de Oruro, Bolivia, 1966
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Book