Agricultural ecosystems :  unifying concepts / 
Edited by Richard Lowrance, Benjamin R. Stinner, and Garfield J. House 
 - x, 233 p. :  il. ;  24 cm. 
<br/><br/> Presented initially at a symposium on August 11, 1982, held during the Ecological Society of America meetings, State College, Pennsylvania -- P. vii 
<br/><br/><label>ISBN: </label>047187888X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>ECOLOGIA AGRICOLA
<br/><br/><label>Dewey Class. No.: </label>630.2745  / Ag36