000 00640nma a22002297a 4500
006 g q ||
999 _c50496
_d50496
005 20210325200619.0
008 s2002 eng d
040 _aNALT
041 _aeng
090 _aCD948
100 0 _aTrajtenberg, Manuel
245 1 0 _aPatents, Citations & Innovations :
_ba window on the knowledge economy [CD-ROM] /
_cManuel Trajtenberg
260 _aMassachusetts :
_bThe MIT Press,
_c2002
300 _a1 แผ่นsd., col.
650 0 4 _aTechnological innovations
650 0 4 _aInventions
650 0 4 _aPatents
850 _aNALT
942 _cCD
_2lcc