TY  - BOOK
AU  - Naciones Unidas
TI  - Recomendaciones relativas al transporte de mercancías peligrosas reglamentación modelo / Naciones Unidas
U1  - 388.044 
N2  - Introductions greeting travel ; jobs fantasies gamily ; give an opinion talk about plans talk about things you've done and haven't done make suggestions ; languages family ; advice directions ; messages requests favors help jobs ; exercise likes and dislikes weight and height invitations family ; apologies plans invitations identification ; vacations location directions offers identification ; apartments transportation location preferences ; plan offers trips clarification comparisons excuses reservations ; conclusions restaurant requests food identification permission ; conclusions locations possibilities quantity requests locations apologies ; greeting identification socializing suggestions ;
ER  -