Koĭ kakvo pravi za okolnata sreda v Bŭlgarii͡a
By: [sŭstavitel Tani͡a Shumkova ; nauchen redaktor Valentin Lŭvchiev]
Contributors: Lŭvchiev, Valentin.
Publisher: Izd-vo "Vendom"
Published: 1998
Place of publication: Sofii͡a
Language: bul
Number of pages: 211
Subjects: Environmental protection -- Bulgaria -- Directories.
Notes: Includes indexes.