The check-out operation in self-service retail food stores /
Harwell, Edward M., 1918-
The check-out operation in self-service retail food stores / [by E.M. Harwell and Paul F. Shaffer]. - Washington, D.C. : U.S. Dept. of Agriculture, Production and Marketing Administration, Marketing and Facilities Branch, 1951. - v, 72 p. : ill. ; 26 cm. - Agriculture information bulletin ; no. 31 .
Cover title.
agr51000243
Supermarkets--Checkout counters.
Self-service stores.
S21 / .A74 no. 31
1 / Ag84Ab no.31
The check-out operation in self-service retail food stores / [by E.M. Harwell and Paul F. Shaffer]. - Washington, D.C. : U.S. Dept. of Agriculture, Production and Marketing Administration, Marketing and Facilities Branch, 1951. - v, 72 p. : ill. ; 26 cm. - Agriculture information bulletin ; no. 31 .
Cover title.
agr51000243
Supermarkets--Checkout counters.
Self-service stores.
S21 / .A74 no. 31
1 / Ag84Ab no.31