Cooper, Donald R.
Business research methods. - Boston : Irwin, 1998. - 6th. ed. index, 703p. ; cm.
0071156771
Industrial Management--Research.
HD30.4.C776
Business research methods. - Boston : Irwin, 1998. - 6th. ed. index, 703p. ; cm.
0071156771
Industrial Management--Research.
HD30.4.C776