Zalesi͡a︡vane na karstovi tereni
By: Angel Georgiev, Mikhail Mikhaĭlov.
Contributors: Mikhaĭlov, Mikhail.
Publisher: Zemizdat
Published: 1977
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 106
Notes: Bibliography: p. 106-[107].