Requena, Federico M., “Fr. William Porras, a Catholic Chaplain at Harvard University (1954-1960)” [Documento en línea], Studia et Documenta: Rivista dell’Istituto Storico san Josemaría Escrivá, (2018), [Consulta: 20180912], Disponible en: https://opusdeihistory.org/articles/fr-william-porras-a-catholic-chaplain-at-harvard-university-1954-1960/.