Columbia subject headings:
Harvard subject headings:
Agriculture and state--United States.
Dairying--Government policy--United States.
Peanut industry--Government policy--United States.
Sugar trade--Government policy--United States.
Princeton subject headings:
Agriculture and state--United States.
Dairying--Government policy--United States.
Peanut industry--Government policy--United States.
Sugar trade--Government policy--United States.