00994cam a22002771a 4500001001300000003000400013005001700017008004100034010001700075035001900092040002300111042001200134050002100146070002000167072000900187100003100196245010500227260013200332300003100464440004700495500001700542650003700559650002500596700003500621740006000656agr51000243 DLC20260227111015.0770920s1951    dcuae        f000 0 eng    aagr51000243   a(OCoLC)3282039  aDLCcOCdDNALdDLC  apremarc00aS21b.A74 no. 310 a1bAg84Ab no.310 aE7001 aHarwell, Edward M.,d1918-14aThe check-out operation in self-service retail food stores /c[by E.M. Harwell and Paul F. Shaffer].  aWashington, D.C. :bU.S. Dept. of Agriculture, Production and Marketing Administration, Marketing and Facilities Branch,c1951.  av, 72 p. :bill. ;c26 cm. 0aAgriculture information bulletin ;vno. 31  aCover title. 0aSupermarketsxCheckout counters. 0aSelf-service stores.1 aShaffer, Paul Franklin,d1917-0 aCheck out operation in self service retail food stores.