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Books about Guruceaga:
Juan de Guruceaga: La sangre de la imprenta (Spanish Edition) by Alfredo Armas Alfonzo (1987)
Wiki information Guruceaga:
Francisco de Guruceaga Iturriza was the Roman Catholic bishop of the Roman Catholic Diocese of La Guaira, Venezuela. Ordained to the priesthood in 1960, de Guruceaga Iturriza became a bishop in 1967 resigning in 2001.