The value of birds :  based on the proceedings of a Symposium and Workshop held at the XIX World Conference of the International Council for Bird Preservation, June 1986, Queens University, Kingston, Ontario, Canada. / 
edited by A. W. Diamond and F. L. Filion. 
 - Cambridge :  International Council for Bird Preservation,  1987 
 - 267 p. :  ill. ;  22 cm. 
 - International  Council for Birds Preservation Technical Publications ;  no.6 .
<br/><br/><label>ISBN: </label>0946888108 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds, Protection of