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steinberg wholesale groceteria wholesalegroceteria montral Lors d'un voyage Ottawa Sam Steinberg visiter un magasin des frres Loblaw constatant l'efficacit d'un magasin ampquotself serveampquot et les succs que cela apportait. En une nuit de Sam Steinberg changea le look d'un intrieur de magasin ampquotserviceampquot en ampquotlibreserviceampquot.