COATES, E. J. Subject searching of large scale information stores embracing all fields of knowledge: classification and concept matching. In: Knowledge organization for information retrieval: Proceedings of the Sixth International Study Conference on Classification Research, held at University College London, 16-18 June 1997. The Hague: International Federation for Information and Documentation, 1997, s. 17-22. FID publication, no. 716. ISBN 92-66-00-716-1.
Digitalizovaná kopie dostupná komerčně přes Google: http://books.google.cz/books?isbn=9266007161.
Ve: Knihovna Jinonice (ABD107) – sign: IN 147