TY - BOOK ID - 136600402 TI - Trendrapport kwartaire sector 1970-1993 PY - 1989 SN - 9037700322 PB - Rijswijk : SCP DB - UniCat KW - Professional employees KW - Professions KW - Statistics UR - https://www.unicat.be/uniCat?func=search&query=sysid:136600402 AB - ER -