Papers):  International Symposium on Urban-Periurban Ecosystems Research and Its Application to Planning and Development, 13-20 Oct., 1987, Beijing. 

 - Beijing:  (s.n.),  1987. 
 - 1v. (various pagings) ;   32 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Urban ecology--Congresses.