TY - BOOK ID - 135254768 TI - The training and retraining of coalminers PY - 1976 SN - 9221014991 PB - Geneva International labour office DB - UniCat KW - Coal miners KW - Employees KW - Occupational training KW - Training of UR - https://www.unicat.be/uniCat?func=search&query=sysid:135254768 AB - ER -