TY - BOOK T1 - Why do people buy?A close look at selling, the great unsolved problem of American business, DA - [1953] CY - New York, CN - HF5429 .F6 CN - HF5429 PB - McGraw-Hill PP - New York, PY - [1953] ID - 30118 KW - Retail trade KW - Sales management. TI - Why do people buy?A close look at selling, the great unsolved problem of American business, ER -