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| English | Russian |
| Liber and Libera | Либер и Либера (In Roman religion, a pair of fertility and cultivation deities) |
| Liber Citatus | цитированный источник ("quoted book", l.c.) |
| Liber Citatus | цитированная книга ("quoted book", l.c.) |
| Liber Durnus Romanorum Pontificum | Сборник формул, принятых римской курией (685-751, a book of formulae accepted by the Roman curia that remained in effect until the 11th century) |
| liber mortuorum | книга мёртвых (Latin for "book of the dead") |
| Liber Pontificalis | Книга Пап Римских ("Book of the Popes" that provides information on all Popes starting from St. Peter the Apostle) |
| liber vitae | книга жизни (Latin for "book of life") |