TY  - BOOK
AU  - Walter Heinrich
TI  - Ecological systems of the geobiosphere :  1 Ecological principals in global perspective   
SN  - 3437202979
U1  - U:(G:5), M3.1 
PY  - 1983///
CY  - Berlin
PB  - Springer- Verlag         
KW  - Geography irt Ecology
ER  -