APA (7th ed.) Citation

Allen, I. R. (1918). Personal efficiency, applied salesmanship, and sales administration. LaSalle Extension University.

Chicago Style (17th ed.) Citation

Allen, Irving Ross. Personal Efficiency, Applied Salesmanship, and Sales Administration. Chicago: LaSalle Extension University, 1918.

MLA (8th ed.) Citation

Allen, Irving Ross. Personal Efficiency, Applied Salesmanship, and Sales Administration. LaSalle Extension University, 1918.

Warning: These citations may not always be 100% accurate.