00382 a2200145 4500001000700000020001800007040002200025041001600047082002300063100002100086245006100107260004700168300000800215362001300223134628 a0-521-62881-4 cLeonardo Da Vinci aPortuguês a421.1 R387nbR387n aRICHARDS, Jack C aNew interchangebenglish for international communication bCambridge University Pressc1997aNew York a105 a19970000