00455nam a22001697a 450000100060000000300100000600500170001604000140003300800410004702000180008810000220010624500430012826000420017130000100021349000260022360000360024918866MX-SIABUC20260702205114.0 aMX-SIABUC050628s2006 mx x j spa d a968-15-1845-440aTorres, Alejandro0 aAlbert Einstein/cpor Alejandro Torres4 aMéxico :bEditores Mexicanos Unidos4 a91 p. aGrandes científicos a1.EINSTEIN, ALBERTd1.1879-1955