Mitra, Satya Gopal. <br/><br/>
Ecological studies of lichens with special reference to air-pollution biomonitoring /  
researched by Satya Gopal Mitra; guided by B.R.Pati and S.C.Santra. 
 - Midnapore :   Vidyasagar University ,   1996. 
 - vii,118p :   ills.,figs.,maps,photos,tables ;   28cm .  
<br/><br/> Document represents Ph.D Thesis 
<br/><br/><label>Subjects--Index Terms: </label>LICHENS-ECOLOGICAL STUDIES LICHEN ECOLOGY LICHEN AND AIR-POLLUTION 
<br/><br/><label>Dewey Class. No.: </label>579.75  / MIT/E