Columbia subject headings:
Election districts--United States--Handbooks, manuals, etc.
United States. Congress--Biography.
United States. Congress--Committees.
Harvard subject headings:
Election districts--United States--Handbooks, manuals, etc.
Handbooks and manuals
United States--Politics and government--1945-
United States. Congress--Biography.
United States. Congress--Committees.
Princeton subject headings:
Election districts--United States--Handbooks, manuals, etc.
United States. Congress--Biography.
United States. Congress--Committees.