TY - BOOK AU - McGrath, Kimberley A. AU - Travers, Bridget. CN - T15 CN - T15 CY - Detroit : DA - c1999. ET - 2nd ed. ID - 241473 KW - Inventions KW - Inventions KW - Inventors KW - Inventions PB - Gale, PP - Detroit : PY - c1999. SN - 0787627593 T1 - World of invention / TI - World of invention / ER -