"Agricultural labourers U.S.S.R." . . . . . . . . . "Ėkonomicheskie interesy i stimuly v selʹskom khozi︠a︡ĭstve (Metodol. ocherk)" . "Ėkonomicheskie interesy i stimuly v sel'skom khozi︠a︡ĭstve : (metodologicheskiĭ ocherk)" . . . . . "Ėkonomicheskie interesy i stimuly" . . . . . "Ėkonomicheskie interesy i stimuly v selʹskom khozi︠a︡ĭstve. (Metodol. ocherk)" . . . . . .