Ruiz de Montoya, A., & McNaspy, C. J. (1993). The spiritual conquest accomplished by the Religious of the Society of Jesus in the provinces of Paraguay, Paran,̀ Uruguay, and Tape. Institute of Jesuit Sources.

Ruiz de Montoya, Antonio, and C. J. McNaspy. The Spiritual Conquest Accomplished by the Religious of the Society of Jesus in the Provinces of Paraguay, Paran,̀ Uruguay, and Tape. St. Louis, Mo.: Institute of Jesuit Sources, 1993.

Ruiz de Montoya, Antonio, and C. J. McNaspy. The Spiritual Conquest Accomplished by the Religious of the Society of Jesus in the Provinces of Paraguay, Paran,̀ Uruguay, and Tape. Institute of Jesuit Sources, 1993.