TY - GEN digital ID - 139551760 TI - A history of inventions and discoveries AU - Beckmann, Johann AU - Gale Cengage Learning PY - 1814 PB - London Printed for J. Walker DB - UniCat KW - Inventions -- History UR - https://www.unicat.be/uniCat?func=search&query=sysid:139551760 AB - ER -