Selʹskoe khozi︠a︡ĭstvo Rossii v XX veke : sbornik statistiko-ėkonomicheskikh svedeniĭ za 1901-1922 g.g. /
Oganovskiĭ, Nikolai Petrovich.
Kondratʹev, Nikolai Dmitrievich.
The Hague :  Europe printing, 
1968.
Reprint of the Moscow, 1923 edition.
Agriculture