Sbornik
Subtitle: materiali ot Nat͡sionalna konferent͡sii͡a na tema "Ekologii͡ata v uchebno-vŭzpitatelnii͡a prot͡ses"
By: sŭstaveteli Khristo Khristov, Todor Khopteriev.
Contributors: Khristov, Khristo Zakhariev.; Khopteriev, Todor.; Smoli͡an (Bulgaria : Obshtina). Obshtinski sŭvet za dukhovno razvitie.; Napravlenie "Narodna prosveta"--Smoli͡an.; Uchitelski institut "Dicho Petrov." Katedra "Biologii͡a i khimii͡a."
Publisher: [s.n.]
Published: 1989
Place of publication: Smoli͡an
Language: bul
Number of pages: 69
Subjects: Environmental education -- Bulgaria.; Environmental sciences -- Study and teaching -- Bulgaria.
Other titles: Materialy ot Nat͡sionalna konferent͡sii͡a na tema "Ekologii͡ata v uchebno-vŭzpitatelnii͡a prot͡ses."
Notes: Includes bibliographical references.
At head of title: Obshtinski sŭvet za dukhovno razvitie napravlenie "Narodna prosveta"--Smoli͡an. Uchitelski institut "Dicho Petrov." Katedra "Biologii͡a i khimii͡a."