Gerngross, Gunter Do and Understand : 50 action stories for young learners - 1ª th 3 th.impression - [s.l.]: Addison Wesley Longman , 1996 1998 nº inv. Univ. 25.729 ISBN: 0582298962 Standard No.: DGR-M3008 Subjects--Topical Terms: IDIOMAS Universal Decimal Class. No.: 802