Ėkologicheskoe sostoi︠a︡nie malykh rek Verkhnego Povolzhʹi︠a︡
By: [avtory, Krylov A.V. ... et al. ; otvetstvennyĭ redaktor, V.G. Papchenkov]
Publisher: Nauka
Published: 2003
Place of publication: Moskva
Language: rus
Number of pages: 388
Subjects: Rivers; Ecology