Columbia subject headings:
Harvard subject headings:
Caste--Pakistan--Karachi.
Christians--Pakistan--Karachi.
Dalits.
Slaughterhouse, Karachi.
Street cleaners--Pakistan--Karachi.
Princeton subject headings:
Caste--Pakistan--Karachi.
Christians--Pakistan--Karachi.
Dalits.
Slaughterhouse, Karachi.
Street cleaners--Pakistan--Karachi.