What an industrial lighting salesman should know
Subtitle: a hand-book of useful information for all salesmen interested in the sale of industrial lighting
Contributors: Tosdal, Harry R. (Harry Rudolph), 1889- former owner
Publisher: National Lamp Works of General Electric Co.
Published: 1920
Place of publication: Cleveland
Language: eng
Number of pages: 32
Subjects: Sales personnel; Handbooks, manuals; Selling; Electric lighting; Factories; Lighting