Mueller, Willard Fritz. Changes in the market structure of grocery retailing / Willard Fritz Mueller and Leon Garoian - Wisconsin, University of Wisconsin, 1961. - 215 p. illus. 25 cm. Subjects--Topical Terms: Grocery trade--United States.Chain stores--United States. LC Class. No.: HD9321.5 / .M8 Dewey Class. No.: 338.7658964 / MUE 1961