It was József Fitz, once the director general of the National Széchényi Library (NSZL), who suggested in 1941 that the Kolozsvár University Library compile the bibliography of Hungarian books issued in the Rumanian era until 1940. After the proposal had been accepted, István Monoki assumed the task of compiling the bibliography of Hungarian periodicals issued in Transylvania between 1919 and 1938, while the National Széchényi Library assumed the task of publication. The volume appeared already in 1941. 1260 newspapers and journals were issued in 63 Rumanian settlements. From among the 101 periodicals appearing before 1991 43 were still published in 1940. Monoki completed material collection for the bibliography of books as well, and sent the manuscript of the alphabetical part to the National Széchényi Library, Budapest in 1942 in order to have it printed. However, printing was ceased in mid- 1994 though the systematic part had already been compiled by that time. A bilateral contract signed in 1962 ensured the conditions of carrying on with the publication. The manuscript of the bibliography was used much by researchers in the National Széchényi Library, therefore it was copied in order to preserve the original. In 1997 the National Széchényi Library and the Transylvanian Museum Society agreed to have the alphabetical part of the bibliography with serial numbers, name and geographical indexes issued by the NSzL in 500 copies without the systematic part. The bibliography appeared, and the facsimile edition of volume 2., the bibliography of newspapers and journals is also considered.