Erens, B. (1991). Research libraries in transition: Academic perceptions of recent developments in university and polytechnic libraries. British Library Board.
Citácia podle Chicago (17th ed.)Erens, Bob. Research Libraries in Transition: Academic Perceptions of Recent Developments in University and Polytechnic Libraries. Wetherby: British Library Board, 1991.
Citácia podľa MLA (8th ed.)Erens, Bob. Research Libraries in Transition: Academic Perceptions of Recent Developments in University and Polytechnic Libraries. British Library Board, 1991.
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