Title: Regionalʹnyĭ seminar "Ėkologicheskie problemy Verkhne-Volzhskogo regiona--uslovii͡a perekhoda k ustoĭchimvomu razvitii͡u" (22-23 centi͡abri͡a)
First published: 1997
Subjects: Congresses, Environmental protection
Places: Russia (Federation), Volga River Valley
LC classification: TD171.5.R9 M486 1997