Nieć, G. “Shaping of the Librarian Second Hand Market After 1989,its Forms, Functioning and Role in the Process of Disseminating Booksin the Context of the Socio-Economic Changes (research Project Summary)”. AUPC Studia Ad Bibliothecarum Scientiam Pertinentia, vol. 15, Mar. 2018, pp. 341-9, doi:10.24917/20811861.15.25.