Opazvane i vŭzproizvodstvo na prirodnata sreda.
By: [redaktor Sivina Kovacheva].
Contributors: Kovacheva, Sivina.; Bulgaria. Dŭrzhaven sŭvet.
Publisher: Nauka i izkustvo
Published: 1984
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 49
Subjects: Environmental policy -- Bulgaria.; Conservation of natural resources -- Government policy -- Bulgaria.
Other titles: Opazvane i vŭzproizvodstvo na prirodnata sreda.