Trudy Vol’nago Ekonomicheskago Obshchestva k Pooshcheniyu v Rossii Zemledýlija i Domostroitel’stva. St. Petersburg. Vols. 1-30, 1765-75; vols. 62-72, 1810-21 [vol. nos. 31-52 not used]; e2, vol. 3, 1796. Trudy Vol’n. Ekon. Obshch. For [ser. 2], vols. 1-19, 1779-94, see: Prodol’zhenie trudov, Vol’nago Ekonomicheskago Obshchestva. St. Petersburg. ULS 5-4426-2. HI 78577