Obsledovatelʹskie raboty v meliorativnom dele
Subtitle: na primerakh Leningradskoĭ oblasti
By: A.S. Kachalov.
Publisher: Gos. izd-vo selʹskokhozi͡a︡ĭstvennoĭ i kolk͡h︡ozno-kooperativnoĭ lit-ry
Published: 1931
Place of publication: Moskva
Language: rus
Number of pages: 116