TY  - BOOK
AU  - A. Robert Koch
TI  - Economic principles : Growth and environment
SN  - 0-87055-509-X
U1  - 330 
PY  - 1968///
PB  - A V I Publishing Co. Inc
N1  - A. Robert Koch: Economic principles : Growth and environment.  A V I Publishing Co. Inc, 1968. 0-87055-509-X--(330KOC)
ER  -