Andrew W Shepherd. (1997). FAO Agricultural services bulletin; No.125: Market information services,Theory and practice. Rome, Italy: FAO.
Chicago-tyylinen lähdeviittausAndrew W Shepherd. FAO Agricultural Services Bulletin; No.125: Market Information Services,Theory and Practice. Rome, Italy: FAO, 1997.
MLA-viiteAndrew W Shepherd. FAO Agricultural Services Bulletin; No.125: Market Information Services,Theory and Practice. Rome, Italy: FAO, 1997.
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