Sel'skaya shkola i okhrana prirody
Subtitle: posobie dlya uchitelei
By: [avtory]: B.G. Ioganzen [i] N.A. Gorodetskaya.
Contributors: Gorodetskaya, Nina Aleksandrovna.
Publisher: Prosveshchenie
Published: 1976
Place of publication: Moskva
Language: rus