TY  - BOOK
AU  - Bethune, Helen
TI  - Why do glaciers move ?
SN  - 9780521137430
U1  - 363 BET/W 
PY  - 2010///
PB  - Cambridge
KW  - Global problems
KW  - Glaciers
KW  - Küresel Sorunlar
KW  - Buzullar
ER  -