Geologicheskie ėkskursii v okrestnosti͡a︡kh Petrograda
Subtitle: posobie dli͡a︡ uchashchikh, uchashchikhsi͡a︡ i li͡u︡biteleĭ prirody
By: Boris Raĭkov.
Edition: 3. znachitelʹno dop. izd.
Series: Opyty i nabli͡u︡denii͡a︡ prirody ;; no. 3
Publisher: Gos. izd-vo
Published: 1923
Place of publication: Moskva
Language: rus
Number of pages: 127