Vrana, R. (2004). Use of electronic information resources among the Croatian scientists in the field of social sciences in a pre-digital library environment: obstacles and opportunities: Use of electronic information resources among the Croatian scientists in the field of social sciences in a pre-digital library environment: obstacles and opportunities. Libraries in the digital age 2004..
Chicago stil citiranjaVrana, Radovan. "Use of electronic information resources among the Croatian scientists in the field of social sciences in a pre-digital library environment: obstacles and opportunities: Use of electronic information resources among the Croatian scientists in the field of social sciences in a pre-digital library environment: obstacles and opportunities." 2004.
MLA stil citiranjaVrana, Radovan. "Use of electronic information resources among the Croatian scientists in the field of social sciences in a pre-digital library environment: obstacles and opportunities: Use of electronic information resources among the Croatian scientists in the field of social sciences in a pre-digital library environment: obstacles and opportunities." 2004.