TY  - BOOK
AU  - Knotig,Helmut
TI  - International meeting on human ecology / 
SN  - 260400027
U1  - 301.3 INT 1 
PY  - 1976///
CY  - Switzerland
PB  - George
KW  - International, Ecology
KW  - Human habitates
KW  - Ecologie humaine
ER  -