Leterman, E. G. (1973). Modern business: Sales and sales management. Alexander Hamilton Institute.
Chicago Edition CitationLeterman, Elmer G. Modern Business: Sales and Sales Management. New York: Alexander Hamilton Institute, 1973.
MLA引文Leterman, Elmer G. Modern Business: Sales and Sales Management. Alexander Hamilton Institute, 1973.
警告:這些引文格式不一定是100%准確.