Columbia subject headings:
Harvard subject headings:
Agricultural development--Saudi Arabia--Hasa (Province)
Agricultural geography--Saudi Arabia--Hasa (Province)
Hasa (Saudi Arabia : Province)
Hasa (Saudi Arabia : Province)--Economic aspects.
Princeton subject headings:
Agricultural development--Saudi Arabia--Hasa (Province)
Agricultural geography--Saudi Arabia--Hasa (Province).
Hasa (Saudi Arabia : Province)
Hasa (Saudi Arabia : Province)--Economic aspects.