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1
The AMA handbook of business letters / Jeffrey L. Seglin with Edward Coleman.
New York : AMACOM, c2002
xviii, 519 p. ; 27 cm.
2
The McGraw-Hill 36-hour marketing course / Jeffrey L. Seglin.
New York : McGraw-Hill, c1990
xii, 211, 15 p. : ill. ; 24 cm.