Columbia subject headings:
National Academy of Sciences (U.S.)
National Research Council (U.S.)
Research--United States.
Science and state--United States.
Harvard subject headings:
National Academy of Sciences (U.S.)
National Research Council (U.S.)
Research--United States
Science and state--United States.
Princeton subject headings:
National Academy of Sciences (U.S.)
National Research Council (U.S.)
Research--United States.
Science and state--United States.