Columbia subject headings:
Astronautics and state--United States--Periodicals.
National Space Council (U.S.)--Periodicals.
Outer space--Exploration--United States--Periodicals.
Harvard subject headings:
Astronautics and state--United States--Periodicals.
National Space Council (U.S.)--Periodicals.
Outer space--Exploration--Government policy--United States--Periodicals.
Princeton subject headings:
Astronautics and state--United States--Periodicals.
National Space Council (U.S.)--Periodicals.
Outer space--Exploration--Government policy--United States--Periodicals.