Jesuits. Praepositus Generalis (1946-1964 : Janssens), Janssens, J. B., & Curran, J. T. (1946). A letter of our Very Reverend Father John Baptist Janssens, General of the Society of Jesus, to the whole Society on fostering the interior life. Revista Catolica Press.

Jesuits. Praepositus Generalis (1946-1964 : Janssens), Jan Baptist Janssens, and John T. Curran. A Letter of Our Very Reverend Father John Baptist Janssens, General of the Society of Jesus, to the Whole Society on Fostering the Interior Life. [El Paso, Tex.: Revista Catolica Press, 1946.

Jesuits. Praepositus Generalis (1946-1964 : Janssens), et al. A Letter of Our Very Reverend Father John Baptist Janssens, General of the Society of Jesus, to the Whole Society on Fostering the Interior Life. Revista Catolica Press, 1946.