En
Ru1917
1917
Bulletin of the All-Russian Agricultural Chamber. G. 4 1917, No. 1/2 (January-February)
Bulletin of the All-Russian Agricultural Chamber. Petrograd, 1913-1917. Film No. 4 of 1917, No. 1/2 (January-February). Petrograd: [Type. t-va pf. "Electro-type, N. Ya. Stoykova"], 1917.
1917
Русское географическое общество
Bulletin of the All-Russian Agricultural Chamber. D. 4 1917, No. 3/5 (March / May)
Bulletin of the All-Russian Agricultural Chamber. Petrograd, 1913-1917.
D. 4 1917, No. 3/5 (March / May). [Petrograd: Type. T-va p / f "Electrotype N. Ya. Stoykova"], 1917.
D. 4 1917, No. 3/5 (March / May). [Petrograd: Type. T-va p / f "Electrotype N. Ya. Stoykova"], 1917.
1917
Русское географическое общество