ALJIAN GEORGE W EDT. (1982). ALJIAN`S PURCHASING HANDBOOK (4TH.). MCGRAW-HILL.
Cita Chicago (17th ed.)ALJIAN GEORGE W EDT. ALJIAN`S PURCHASING HANDBOOK. 4TH. NEW YORK: MCGRAW-HILL, 1982.
Cita MLA (9th ed.)ALJIAN GEORGE W EDT. ALJIAN`S PURCHASING HANDBOOK. 4TH. MCGRAW-HILL, 1982.
Atenció: Aquestes cites poden no estar 100% correctes.