Columbia subject headings:
Harrisburg Seven Trial, Harrisburg, Pa., 1972.
United States--Politics and government--1969-1974.
Harvard subject headings:
Harrisburg Seven Trial, Harrisburg, Pa., 1972.
United States--Politics and government--1969-1974.
Princeton subject headings:
Harrisburg Seven Trial, Harrisburg, Pa., 1972.
United States--Politics and government--1969-1974.