Columbia subject headings:
Federal aid to water resources development--United States.
Water conservation projects--United States--Finance.
Water resources development--United States.
Harvard subject headings:
Federal aid to water resources development--United States.
Water conservation projects--United States--Finance.
Water resources development--United States
Princeton subject headings:
Federal aid to water resources development--United States.
Water conservation projects--United States--Finance.
Water resources development--United States.