Draggan, Sidney <br/><br/>
The microcosm :  biological model of the ecosystem / 
by Sidney Draggan 
 - London :  Monitoring and Assessment Research Centre,  1980 
 - 46p. 
 - Technical report / Report /  no. 19 .
<br/><br/><label>ISBN: </label>0905918169 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biotic communities<br/>Ecology--Research<br/>Environmental Chemistry<br/>Biological models