Columbia subject headings:
Orlaĭ, Ivan Semenovich, 1770-1829.
Physicians--Russia--Biography.
Scholars--Russia--Biography.
Zakarpatsʹka oblastʹ (Ukraine)--History.
Harvard subject headings:
Orlaĭ, Ivan Semenovich, 1770-1829.
Physicians--Russia--Biography.
Scholars--Russia--Biography
Zakarpatsʹka oblastʹ (Ukraine)--Biography.
Zakarpatsʹka oblastʹ (Ukraine)--History.
Princeton subject headings:
Orlaĭ, Ivan Semenovich, 1770-1829.
Physicians--Russia--Biography.
Scholars--Russia--Biography.
Zakarpatsʹka oblastʹ (Ukraine)--Biography.
Zakarpatsʹka oblastʹ (Ukraine)--History.