Columbia subject headings:
Harvard subject headings:
Authors, Polish--20th century--Correspondence.
Axer, Erwin, 1917---Correspondence.
Mrożek, Sławomir--Correspondence.
Theatrical producers and directors--Poland--Correspondence.
Princeton subject headings:
Authors, Polish--20th century--Correspondence.
Axer, Erwin 1917---Correspondence.
Mrożek, Sławomir--Correspondence.
Personal correspondence.
Theatrical producers and directors--20th century--Poland--Correspondence.