Columbia subject headings:
Khyber Pakhtunkhwa (Pakistan)--Economic conditions.
Khyber Pakhtunkhwa (Pakistan)--History.
Harvard subject headings:
North-West Frontier Province (Pakistan)--Economic conditions.
North-West Frontier Province (Pakistan)--History.
Princeton subject headings:
North-West Frontier Province (Pakistan)--Economic conditions.
North-West Frontier Province (Pakistan)--History.