TY - BOOK ID - 146196485 TI - Second symposium on coal preparation : Leeds University, 21-25 october 1957 AU - Symposium on coal preparation AU - University of Leeds PY - 1957 PB - Leeds : University of Leeds. Department of Mining and mineral sciences, DB - UniCat KW - Coal preparation KW - Charbon KW - Préparation. KW - Préparation. UR - https://www.unicat.be/uniCat?func=search&query=sysid:146196485 AB - ER -