TY  - BOOK
AU  - Ley,Willy
AU  - Ley,Willy
AU  - Life
TI  - Life nature library the poles
U1  - 503 LEY 
PY  - 1963///.
CY  - Nederland : 
PB  - Time Incorporated, 
KW  - Far frontiers
KW  - Laboratory
KW  - High latitudes
N1  - Including index
ER  -