Zemnovodni i vlechugi v Bŭlgarii︠a︡
By: Vladimir Beshkov, Krŭstʹo Nanev
Contributors: Nanev, Krŭstʹo
Publisher: Pensoft
Published: 2002
Place of publication: Sofii︠a︡
Language: bul
Number of pages: 120
Notes: Includes bibliographical references (p. 116-120).