Shkolʹnye ėkskursii
Subtitle: ikh znachenie i organizat͡s︡ii͡a︡ : sbornik nauchno-pedagogicheskikh stateĭ
By: pod obshcheĭ red. B.E. Raĭkova.
Publisher: Gos. izd-vo
Published: 1921
Place of publication: Peterburg
Language: rus
Number of pages: 416