Columbia subject headings:
Harvard subject headings:
Commerce--History--Medieval, 500-1500
Luxuries--Early works to 1800.
Princeton subject headings:
Commerce--History--Medieval, 500-1500--Handbooks, manuals, etc.
Jāḥiẓ, -868 or 869--Translations.
Luxuries--Early works to 1800--Handbooks, manuals, etc.