(1920). Personal efficiency: How to systematise yoursefl and your business . A.W. Shaw Company.
Cita Chicago Style (17a ed.)Personal Efficiency: How to Systematise Yoursefl and Your Business . London: A.W. Shaw Company, 1920.
Cita MLA (9a ed.)Personal Efficiency: How to Systematise Yoursefl and Your Business . A.W. Shaw Company, 1920.
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