TY  - BOOK
AU  - Pous,Dinorah
TI  - Blue planet: English through science 
SN  - 9701042271
U1  - 507 
PY  - 2003///
CY  - Boston
PB  - McGraw-Hill
KW  - Readers
KW  - Science
KW  - Problems, exercises, etc
KW  - English language
KW  - Study and teaching
N1  - Primary
ER  -