Consumer panels /
Sudman, Seymour
Consumer panels / Seymour Sudman, Robert Ferber - Chicago : American Marketing Association, 1979 - 123 p. : ill. ; 23 cm.
0877571317
Consumer panels
Consumer panels / Seymour Sudman, Robert Ferber - Chicago : American Marketing Association, 1979 - 123 p. : ill. ; 23 cm.
0877571317
Consumer panels
