TY  - BOOK
AU  - NORWAY , STATISTICS (Central Bureau of --)
ED  - NORWAY , STATISTICS (Central Bureau of --)
TI  - Statistical yearbook of Narway 1971  :  90th Issue .   
U1  - B28n . 573 . N71, L1 
PY  - 1971///
CY  - Oslo
PB  - Central Bureau of statistics       
ER  -