Metodika i tekhnika ėkskursiĭ
By: B.E. Raĭkov.
Edition: 3 izd., perer. i dop.
Series: Ėkskursionnai͡a︡ biblioteka
Publisher: Gos. izd-vo
Published: 1927
Place of publication: Moskva
Language: rus
Number of pages: 148