Columbia subject headings:
Harvard subject headings:
Autobiographies
Biographies
Botanists--Poland.
Mielec (Poland)--Biography.
Mielec (Poland)--History.
Szafer, Mieczysław
Princeton subject headings:
Botanists--Poland--Biography.
Hunting--Poland--Mielec.
Mielec (Poland)--Biography.
Mielec (Poland)--History.
Szafer, Mieczysław.