Cochran, 1977; Chandler, giá xây nhà trọn gói tại Cần Thơ 1977; Marburg, 1951; Clewett, 1951) The appearance of the division retailer in the foremost cities and the rise of mail order firms in the postbellum period modified the retailing market. The U.S. Department of Agriculture’s Experiment Stations took the lead in creating wheat varieties for various areas.