Green bibliografic literacy exhibition : selection from the ecological fund of the National and University Library in Zagreb (2015 - 2018) : authors Ana Rubić and Iva Plejić Brnčić] / The 1st International Conference on Green Libraries Let's Go Green!, Zagreb NSK, Brijuni, Croatia, 8 - 10 November 2018 : project NSK Green Library for Green Croatia - Plejić Brnčić, Iva (National and University Library in Zagreb, 2018)