TY  - BOOK
AU  - Waring,Rob
ED  - National Geographic Society (U.S.)
TI  - Polar bears in trouble
T2  - Footprint reading library. Upper-intermediate B2
SN  - 9781424012312 (pbk.)
AV  - PE1127.A6 
PY  - 2009///
CY  - London
PB  - Heinle
KW  - Bears.
KW  - Readers.
N1  - Includes 1 DVD with video and audio material in pocket inside back cover; "National Geographic"--Cover
ER  -