Ferber, Robert.
Market research / [by] Robert Ferber. - [New York] : McGraw-Hill, [1949?]. - xiv, 542 p. : ill. - McGraw-Hill paperbacks .
Original title : Statistical techniques in market research.
Marketing research.
Market research / [by] Robert Ferber. - [New York] : McGraw-Hill, [1949?]. - xiv, 542 p. : ill. - McGraw-Hill paperbacks .
Original title : Statistical techniques in market research.
Marketing research.