00529cam a22001934a 4500003001000000005001700010008004100027040002500068041000800093044000800101080000900109100001500118245003600133260003100169490006300200650003300263655001900296700002000315AR-SsjUIB20250710162758.0250429s1968 xxk 000 0 eng d aAR-SsjUIBcAR-SsjUIB0 aeng axxk a66.01 aCook, T.M.10aA chemical operatives'handbook. aOxford :bPergamon,c1968.0 aLibrary of industrial and comercial education and training 7aTecnología química2lemb 7aLibro2unescot1 aMatterson, K.J.