University of Bath. Library & Needham, A. (1975). Performance of four physical forms of catalogue: User times and success rate for catalogues on COM fiche, cassetted COM rollfilm, printout and card. Bath University Library.

University of Bath. Library and Angela Needham. Performance of Four Physical Forms of Catalogue: User Times and Success Rate for Catalogues on COM Fiche, Cassetted COM Rollfilm, Printout and Card. [Bath]: Bath University Library, 1975.

University of Bath. Library and Angela Needham. Performance of Four Physical Forms of Catalogue: User Times and Success Rate for Catalogues on COM Fiche, Cassetted COM Rollfilm, Printout and Card. Bath University Library, 1975.