The Birds of the Sakar Mountain/ 
Stoycho Stoychev, Dimitar Demerdzhiev, Georgi Gerdzhikov, Borislav Borisov ; editor Petar Shurulinkov; translation Yurii Kornilev ; maps Hristo Hristov 
 - 56 pages: col photography, maps; 29 cm. 
<br/><br/><label>ISBN: </label>9789549232219 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Birds -- Bulgaria<br/>Bird refuges -- Bulgaria -- Guidebooks<br/>Birds -- Bulgaria -- Geographical distribution<br/>Birds -- Bulgaria -- Identification<br/>Key Biodiversity Areas -- Bulgaria<br/>Biogeography -- Bulgaria
<br/><br/><label>Dewey Class. No.: </label>ÖDA 598.09499  / BI