Cutting Still the Topic, American Druggist and Pharmaceutical Record, October 25, 1897.
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John D. Park & Son Co. Again Beaten, American Druggist and Pharmaceutical Record, November 26, 1900.
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Court Decisions re Trade Discount Protection, Publishers' Weekly, January 17, 1903. |
American Fair Trade League, Trust in the Making, The Midland Druggist and Pharmaceutical Review, March 1914. |
18 Years Getting a Suit to Trial: Action of John D. Park & Sons Co. Against Alleged Trust Almost ready, New York Times, June 15, 1915. |

