TY - BOOK ID - 130167786 TI - Online information retrieval: today and tomorrow AU - Armstrong, C.J. AU - Hartley, R.J. PY - 1990 SN - 0904933776 PB - Oxford Learned Information DB - UniCat UR - https://www.unicat.be/uniCat?func=search&query=sysid:130167786 AB - ER -