| 1951 | LAV1.1 | Rus, Anton; Castaldini, Alberto (ed.) | Sapientia et scientia theologica: in honorem Renzo Lavatori per l'80 genetliaco | da |
| 1952 | LEA1.1 | Leal, Jerónimo | Actas Latinas de Mártires Africanos | da |
| 1953 | LEB1.1 | Le Boulluec, Alain; Gabriela Soares Santoprete, Luciana; Timotin, Andrei (eds.) | Exégèse, révélation et formation des dogmes dans l’Antiquité tardive | da |
| 1954 | LEC1.1 | Lechner, Joan Marie | Renaissance concepts of the commonplaces | nu |
| 1955 | LEE1.1 | Lee, Richard A. | Science, the singular, and the questions of theology | da |
| 1956 | LEE2.1 | Pieter de Leemans (ed.) | Translating at the Court. Bartholomew o Messina and Cultural Life at the Court of Manfred, King of Sicily | da |
| 1957 | LEE2.2 | Pieter de Leemans (ed.) | Aristotle's Problemata in different Times and Tongues | da |
| 1958 | LEE2.3 | Pieter de Leemans (ed.) | Between Text and Tradition. Pietro d'Abano and the Reception of Pseudo-Aristotle's Problemata Physica in the Middle Ages | da |
| 1959 | LEE2.4 | Pieter de Leemans (ed.) | On Good Authority. Tradition, Compilation and the Construction of Authority in Literature from Antiquity to the Renaissance | da |
| 1960 | LEF1.1 | Leff, Gordon | Paris and Oxford Universities in the thirteenth and fourteenth century | da |
| 1961 | LEF2.1 | Lefèvre, Charles | Sur l'évolution d'Aristote en phychologie | da |
| 1962 | LEF3.1 | Lefkowitz, Mary R. | Women in Greek myth | da |
| 1963 | LEF4.1 | Lefebvre, David | Dynamis : sens et genèse de la notion aristotélicienne de puissance | da |
| 1964 | LEH1.1 | Lehmann, Yves (ed.) | Aristoteles Romanus. La reception de la science aristotelicienne dans l'Empire greco-romain | da |
| 1965 | LEH2.1 | Lehrs, Karl | Quaestiones epicae | da |
| 1966 | LEM1.1 | Lemoine, Michel; Picard-Parra, Clotilde (trad.) | Théologie et cosmologie au XIIe siècle. L'Ecole de Chartres | nu |
| 1967 | LEO1.1 | Leonardi, Claudio | Anastasio Bibliotecario e l'ottavo concilio ecumenico | da |
| 1968 | LEO1.2 | Leonardi, Claudio | Gregorio Magno e le Origini dell'Europa | da |
| 1969 | LEO2.1.1 | Leo des Grossen | Samtliche Sermonen (1-38) | da |
| 1970 | LEO2.1.2 | Leo des Grossen | Samtliche Sermonen (39-96) | da |
| 1971 | LEO3.1 | Leone, Marialucrezia | Sinderesi. La conoscenza immediata dei principi morali tra Medioevo e prima Età Moderna | da |
| 1972 | LEPh2012.04.2 | | Les Etudes philosophiques. n° 2 (2012), Marius Victorinus | da |
| 1973 | LES1.1 | Lessines, Gilles de; De Wulf, Maurice | Le Traite De Unitate Formae | da |
| 1974 | LET1.1 | M. Letronne (editor) | Fragmenta Historicorum Graecorum. Apollodori Bibliotheca | da |
| 1975 | LEV1.1 | Lévy, Carlos (ed.) | Philon d'Alexandrie et le langage de la philosophie | da |
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