TY  - BOOK
AU  - Van Raay Hans G T Ed.
AU  -  Lugo Ariel E Ed.
TI  - Man and environment Ltd:  Natural imbalances and so   
SN  - 90 237 6243 6
U1  - U47.1.N7, L4 
PY  - 1974///
CY  - Hague
PB  - Institute of Social Studies       
KW  - Human Geography
ER  -