de Fretes, Yance <br/><br/>
Accessing the necessary width of buffer zones  An ecological study in ruteng strict nature reserve flores Indonesia /  [microform] : 
Yance de Fretes 
 - Ann Arbor, Mich. :  University Microfilms International,  1996 
 - 2 microfisches ;  11x 15 cm. 
<br/><br/>Thesis (Ph.D) - University of British Columbia , 1996