TY - BOOK ID - 146107670 TI - Beehives of invention : Edison and his laboratories AU - Davidson, George E. AU - United States. PY - 1973 PB - Washington, D.C. : Office of Publications, National Park Service, U.S. Dept. of the Interior, DB - UniCat KW - Inventors KW - History. KW - Edison, Thomas A. UR - https://www.unicat.be/uniCat?func=search&query=sysid:146107670 AB - ER -