Zashtitata na prirodata i okolnata sreda, izkli͡u︡chitelno vazhen problem na sŭvremennostta
Subtitle: [ocherk]
By: Nikolaĭ Georgiev.
Publisher: Izd-vo na BZNS
Published: 1979
Place of publication: Sofii͡a︡
Language: bul
Number of pages: 25
Subjects: Nature conservation -- Addresses, essays, lectures.; Environmental protection -- Addresses, essays, lectures.