Documenti sul Baronio presso la British Museum Library, Napoli, Tip. D'Agostino, 1964. Mario Borrelli, L'Epistolario di Giusto Calvino nei suoi rapporti col Baronio, Naples, 1965. Mario Borrelli, Le testimonianze Baroniane dell'Oratorio di Napoli, Tip. Lithorapid, 1965. Mario Borrelli, Documenti sul Baronio presso la Bodleian Library, Napoli, Tip. D'Agostino, 1965. Mario Borrelli, Contributi sulla storia del Collegio Polacco, 4ª ed., 1966. Mario Borrelli, L'Architetto Nencioni Dionisio di Bartolomeo, Naples, Tip. Agar, 1967. Mario Borrelli, Contributo alla storia degli artefici maggiori e minori della mole Girolimiana, Napoli, Tip. Laurenziana, vol V, 1968. Mario Borrelli, Le costituzioni dell'Oratorio Napoletano, Naples, Ed. Congregazione dell'Oratorio, Tip. Agar, 1968. Mario Borrelli, I fratelli Vosmeer e il Cardinale Baronio, in Soliditas: Scritti in onore di Antonio Guarino, Naples, Ed. Jovene, pp. 3835–3908, 1984. Mario Borrelli, Il Cardinale Baronio e l'Officina Plantiniana, in Historians of Early Modern Europe (Sixteenth century studies conference.; American Society for Reformation Research), Pub: Brigham Young University, Northeast Missouri State University) Works on social administration Mario Borrelli, The role of voluntary groups in Britain, London, 1969. (typescript) Mario Borrelli, Unearthing the Roots of the Sub-Culture of the South Italian Sub-Proletariat, London, 1969. (typescript) Mario Borrelli, The Society of Southern Italy, in which Naples is situated and the factors giving rise to pressure groups and community development, London, 1970. (typescript) Mario Borrelli, Social action groups and community development, London, 1970. (typescript) Mario Borrelli, Scuola e sviluppo capitalistico in Italia, in "Social Deprivation and Change in education", Proceedings of the international conference, York April 1972, Nuffield Teacher Enquiry, York University. Mario Borrelli, Socio-Political Analysis of the Sub-Proletarian Reality of Naples of Intervention for the Workers of the Centre, 1973. (typescript) Mario Borrelli, Basic Concepts for Community Action in the Urban Sub-Proletariat in "Les plus defavorisés, aù nous ménent-ils?", Proceedings of the international conference of The Hague 25–27 October 1974, Federation Europeenne d'aide a toute detresse, 1974. Mario Borrelli, Hypothesis of the Existence of a "Peripheral" Europe with consequent different types of Social Policy Intervention, 1975. Mario Borrelli, Exclusion from the Productive Process, Social Deviance and Mental Illness, 1975. (typescript) Mario Borrelli, Alimentation and Direction of Social Intervention among the Neapolitan Sub-Proletariat, 1975. (typescript) Mario Borrelli, Communication and Consciousness Raising (a Strategy for the Socio-Economically Marginal and Excluded), in "Europe and Africa: exploitation or development", Vasterhanings Seminar Proceedings, Sweden 1–14 August 1975, by IPRA Summer Seminar, 1975. Mario Borrelli, Psychological Problemy of Children living under non-optimal Social