A brief overview of the agricultural production of the Petrograd province according to the census of 1919 and 1920.

A brief overview of the agricultural production of the Petrograd province according to the census of 1919 and 1920.: Materials for the upcoming sowing campaign / Petrogr.lips.Dep.statistics.- Petrograd: 23rd state.Type., 1921. -[1], 31 p.: table .. -.I. Leningrad provincial statistics department. 1.Territory, power (collection).Electronic copy source: PBOriginal storage: St. Petersburg State University