Columbia subject headings:
Harvard subject headings:
Blood donors--Germany--Leipzig--History--Sources.
Blood--Collection and preservation--Germany--Leipzig--History--Sources.
Klaus, Karl, 1903-1982--Diaries.
Princeton subject headings:
Blood donors--Germany--Leipzig--History--Sources.
Blood--Collection and preservation--Germany--Leipzig--History--Sources.
Klaus, Karl, 1903-1982--Diaries.