ROME, Sept 23 - Italian retail sales rose a seasonally adjusted 0.6 percent in July from June, national statistics office Istat said on Tuesday. On a year-on-year, unadjusted basis, retail sales climbed 2.2 percent. Istat said sales at large distribution outlets such as super- and hypermarkets were up 3.9 percent year on year, while sales at smaller distributors edged up 1.1 percent. Food sales soared 3.8 percent year-on-year in July, while non-food sales rose 1.3 percent. Istat said retail sales in the first seven months of 2003 increased 2.7 percent compared with January-July 2002.//