Reports on the agronomic department to the next county Zemsky session of the 1912 session

Petrozavodsk countyland.Reports on the agronomical department of the next county Zemsky meeting of the 1912 session.- Petrozavodsk: Olonets.lips.Type., 1913. -II, 71 p.: Tab .. -.I. Petrozavodskaya county Zemstvo collection.Electronic Source: PB