PARSON'S W J. (1982). IMPROVING PURCHASING PERFORMANCE. GOWER.
Chicago-čujuhus (17. p.)PARSON'S W J. IMPROVING PURCHASING PERFORMANCE. ENGLAND: GOWER, 1982.
MLA-čujuhus (9. p.)PARSON'S W J. IMPROVING PURCHASING PERFORMANCE. GOWER, 1982.
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