Columbia subject headings:
Architecture--Iraq--Sāmarrāʼ.
Buildings--Iraq--Sāmarrāʼ.
Islamic architecture--Iraq--Sāmarrāʼ.
Harvard subject headings:
Architecture--Iraq--Sāmarrāʾ.
Buildings--Iraq--Sāmarrāʾ.
Islamic architecture--Iraq--Sāmarrāʾ.
Sāmarrāʼ (Iraq)--Buildings, structures, etc.
Princeton subject headings:
Architecture--Iraq--Sāmarrāʾ.
Buildings--Iraq--Sāmarrāʾ.
Islamic architecture--Iraq--Sāmarrāʾ.
Sāmarrāʼ (Iraq)--Buildings, structures, etc.