TY - BOOK ID - 6056998 TI - Cathedral, forge, and waterwheel : technology and invention in the middle ages AU - Gies, Frances. AU - Gies, Joseph. PY - 1994 SN - 0060165901 PB - New York HarperCollins DB - UniCat KW - Technology KW - Inventions KW - Science, Medieval. KW - History. KW - Science, Medieval KW - Medieval science KW - History KW - Sciences KW - Histoire UR - https://www.unicat.be/uniCat?func=search&query=sysid:6056998 AB - ER -