APA Citation

Cleverdon, C., & Keen, M. (1966). Factors determining the performance of indexing systems. London: Association of Special Libraries and Information Bureaux.

Chicago Style Citation

Cleverdon, Cyril., and Michael Keen. Factors Determining the Performance of Indexing Systems. London: Association of Special Libraries and Information Bureaux, 1966.

MLA Citation

Cleverdon, Cyril., and Michael Keen. Factors Determining the Performance of Indexing Systems. London: Association of Special Libraries and Information Bureaux, 1966.

Warning: These citations may not always be 100% accurate.