Columbia subject headings:
Agricultural innovations--Pakistan--Punjab.
Agriculture--Economic aspects--India--Punjab.
Farm income--Pakistan--Punjab.
Rural development--Pakistan--Punjab.
Harvard subject headings:
Agricultural innovations--Pakistan--India--Punjab.
Agriculture--Economic aspects--Pakistan--Punjab.
Farm income--Pakistan--India--Punjab.
Rural development--Pakistan--India--Punjab.
Princeton subject headings:
Agricultural innovations--Pakistan--Punjab.
Agriculture--Economic aspects--Punjab (Province).
Farm income--Pakistan--Punjab.
Rural development--Pakistan--Punjab.