Nablyudeniya i opyty na urokakh truda v nachal'nykh klassakh
Subtitle: posobie dlya uchitelei
By: [avtory]: N.E. Tseitlin, Ya. A. Rozhnev.
Contributors: Rozhnev, Yakov Andreevich.
Publisher: Prosveshchenie
Published: 1980
Place of publication: Moskva
Language: rus