School Milk Bidding Under Investigation. In New York City
NYS Atty Gen Louis J Lefkowitz's office is investigating possible rigging of bids for milk purchased by NYC school system for last 3 yrs; investigation, sparked by allegations made by 1 of contractors supplying milk, is latest inquiry into aspects of school purchasing, and comes in aftermath of Educ Bd's investigation into Bur of Supplies' practices and after recent disclosures of alleged irregularities in School Lunch Bur purchasing procedures; (M)