PFEIFFER J WILLIAM(ED.). (1989). 1989 ANNUAL DEVELOPING HUMAN RESOURCES. H.R.D UNIVERSITY.
Chicago-viite (17. p.)PFEIFFER J WILLIAM(ED.). 1989 ANNUAL DEVELOPING HUMAN RESOURCES. CALIFORNIA: H.R.D UNIVERSITY, 1989.
MLA-viite (9. p.)PFEIFFER J WILLIAM(ED.). 1989 ANNUAL DEVELOPING HUMAN RESOURCES. H.R.D UNIVERSITY, 1989.
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