00608nam a2200181Ia 4500 90179 BIBL 20160527204628.0 760721s1973 mx a b 001 0 spa d Pecsok, Robert L. 262659 Local Modern methods of chemical analysis. Métodos modernos de análisis químico Robert L. Pecsok, L. Donald Shields. Mexico Editorial 1973. 487 p. ill. Includes bibliographies and index. Chemistry , Analytic 72295 Local Shields, Loran Donald joint author. 276732 Local 73437 73437 0 0 0 543_000000000000000_P369M_E 0 evl 372240 10 10 1 2016-05-27 142351 0 543 P369m E 80000000709009 2016-05-27 00:00:00 r:90179 z:NCC:D 6