Lowrance, Richard <br/><br/>
Agricultural Ecosystems: Unifying concepts, Richard Lowrance, eng 

 - New York, John-Wiley &Sons., US  1984 
 - x, 233p.  24 cm. 
 - A wiley-Interscience Publication .
<br/><br/><label>ISBN: </label>047187888X 
<br/><br/><label>Dewey Class. No.: </label>630.2745,  / D, Low