Okhrana prirody
Subtitle: [uchebnoe posobie]
By: [avtory]: N.A. Gladkov, A.V. Mikheev [i] V.M. Galushin.
Contributors: Mikheev, A. V.; Galushin, V. M.
Publisher: Prosveshchenie
Published: 1975
Place of publication: Moskva
Language: rus