Sumtsov N.F. Prof. Organization of public and school libraries. In Russian (ask us if in doubt)/Sumtsov N.F. prof. Organizatsiya obshchestvennykh i shkol'nykh bibliotek. Sumtsov N.F. Prof. Organization of public and school libraries. 1896. Kharkiv. SKUalbb0d6d41c73907cac.