Погорелскии, Ивaн Вaсилевич. Ocherki yekonomicheskoi i politicheskoi istorii Khivinskogo khanstva kontsa XIX i nachala KHKH vv. 1873-1917 gg I. V. Pogorelskii. - [S.l.] : Leningradskogo Universiteta, 1968. - 146 p. ; ISBN: RUSSIAN3781 Dewey Class. No.: 958.7 / Oc