Columbia subject headings:
Ervin, Sam J., Jr. (Sam James), 1896-1985.
Watergate Affair, 1972-1974.
Harvard subject headings:
Ervin, Sam J., Jr. (Sam James), 1896-1985
Ervin, Sam J., Jr. (Sam James), 1896-1985.
Watergate Affair, 1972-1974
Princeton subject headings: