00465cam a22001694a 4500003001000000005001700010008004100027020001500068040002500083041000800108044000800116080001300124245007400137260004600211650001900257655001900276AR-SsjUIB20250710145500.0250429s1980 xxk 000 0 eng d a0194513521 aAR-SsjUIBcAR-SsjUIB0 aeng axxk a802.0-0700aReading and thinking in english :bConcepts in use teacher's edition. aOxford :bOxford University Press,c1980. 7aIngleĢs2lemb 7aLibro2unescot