Nikitsky, Ya. Surrogates and unusual sources of plant and animal food in Russia. In Russian (ask us if in doubt)/Nikitskiy, Ya. Ya. Surrogaty i neobychnye v Rossii istochniki pishchevykh sredstv rastitelnogo i zhivotnogo proiskhozhdeniya. Compiled on behalf of the agricultural section. Moscow, 1921. 136 p. SKUalb1c1ab4b9972d1467.