Browsing by Author "Helgeson, Delmer"
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Item Accounts receivable management for business firms(North Dakota State University, 1984) Zetocha, Dale F.; Helgeson, Delmer; Pederson, Glenn D.Item Sunflower for power!(North Dakota State University, 1981) Hofman, Vern; Kaufman, Ken; Helgeson, Delmer; Dinusson, W. E.