01062nas a22003377a 450000500170000000800410001701000100005801100100006802200140007803500110009224500650010326000530016830000070022131000120022836200190024059000410025959000410030059000410034159000420038265000450042465000500046986600240051986600200054386600350056386600270059886600220062586600200064790100070066790500330067499900170070720220329143031.0001017u us mr pernn 0 b1eng d a90982 a91954 a0021-9584 a10251700aJournal of Chemical Educationc/by American Chemical Society0 aNew York, N.Y.:bAmerican Chemical Societyc1924 av. aMensual av.53 n.3 1976. aBATCH-UPDb10c20130110lUCH01h0521 aBATCH-UPDb10c20130410lUCH01h0159 aBATCH-UPDb10c20130914lUCH01h1950 aCONVERSIONb10c20130109lUCH01h135014aQuímicaxEstudio y enseñanza.99355914aQuímicaxPublicaciones periódicas.993571 av. 51 n.1-12 (1974) av.38 n.6 (1961) av.43 n.1-v.49 n.12 (1966-1972) av.50 n.1-5,7-12 (1973) av.52 n.1-2 (1975) av.53 n.3 (1976) aSE aAraceli Hernández Gómez. c90982d90982