British library research & development reports
Sergean, R
British library research & development reports / The British Library Board, 1977 - London: The British Library Board, 1977 - 62p.
Library science
Report
D 02+002/.007 / L7.1
British library research & development reports / The British Library Board, 1977 - London: The British Library Board, 1977 - 62p.
Library science
Report
D 02+002/.007 / L7.1