For the scientific description of books one can use sections from an electronic resource (used for the work with BELMARC formats): book artefacts: revealing, description, preservation, usage [Electronic resource]: methodic materials/the National Library of Belarus ; G. V. Kireeva [and others]; compiled by T. I. Roshchina ; under the general editorship of A. A. Susha. – Minsk : the NLB, 2013. – 1 electronic optical disk (CD-ROM) : color ; 12 cm.