Charles Ellison, A. Hamilton Church, Paul S. Keiser. Harry T. Collings, editor-in-chief.
THE CUMULATIVE LOOSE-LEAF BUSINESS ENCYCLOPEDIA. Vol.6: Advertising, Office management, Correspondence.
THE CUMULATIVE LOOSE-LEAF BUSINESS ENCYCLOPEDIA. Vol.6: Advertising, Office management, Correspondence. By Charles Ellison, A. Hamilton Church, Paul S. Keiser. Harry T. Collings, editor-in-chief. © on revisions & additions; 25Jan33; A67727. Holt, Rinehart & Winston, Inc. (PCW); 25Aug60; R262627.
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