Okhrana prirody
Subtitle: fakul'tativnyi kurs : posobie dlya  uchashchikhsya
By: A.V. Mikheev [i dr.], pod redaktsiei K.V. Pashkanga.
Contributors: Mikheev, A. V.; Pashkang, K. V.
Edition: 2-e izd., perer.
Publisher: Prosveshchenie
Published: 1990
Place of publication: Moskva
Language: rus
Notes: First published 1983.