Gerasimov, I P <br/><br/>
Geography and ecology  a collection of articles 1971 - 1981 

 - Moscow  Progress publishers  1983 
 - 167 p.; 20cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Anthropogenic transformation<br/>Ecological problems<br/>Ecology<br/>Geographic aspects of ecological problems<br/>Natural ecosystem