Columbia subject headings:
Harvard subject headings:
Land use, Rural--Government policy--California--Congresses.
Real estate development--Government policy--California--Congresses.
Soil conservation--Government policy--California--Congresses.
Princeton subject headings:
Land use, Rural--Government policy--California--Congresses.
Real estate development--Government policy--California--Congresses.
Soil conservation--Government policy--California--Congresses.