LEADER | 00416nam a2200133 u 4500 | ||
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001 | 000522378 | ||
005 | 20120119082544.0 | ||
008 | 970703 ||||| und | ||
035 | |a 932353 | ||
040 | |a Sistema de Bibliotecas de la Universidad de Costa Rica | ||
082 | 0 | |a 786.221 |b B125f |2 00 | |
245 | 1 | 0 | |a Fifteen three-part inventions |
773 | 0 | |7 nnam |t Fifteen two-part inventions | |
912 | |a 19-JAN-2012 - CALDERON ZUÑIGA, ANA CRISTINA |