Leterman, E. G. (1973). Modern business: Sales and sales management. Alexander Hamilton Institute.
シカゴスタイル引用形Leterman, Elmer G. Modern Business: Sales and Sales Management. New York: Alexander Hamilton Institute, 1973.
MLA引用形式Leterman, Elmer G. Modern Business: Sales and Sales Management. Alexander Hamilton Institute, 1973.
警告: この引用は必ずしも正確ではありません.