Antibiotics

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…ol><li>Pharmaceutical Preparations, Except Biologicals, 1978, Current Industrial Reports, Series MA28(78)-1, U.S. Department of Commerce, Bureau of the Census, Washington, D.C. <li>Synthetic Organic Chemicals, United States Production and Sales of Medicinal Chemicals, U.S. Tariff Commission (1972-73) United States International Trade Commission (1974-75), U.S. Government Printing Office, Washington, D.C. <li>L.S. Goodman and A. Gilman, The Pharmacological Basis of Therapeutics, 5th ed., Macmillan Publishing Co., New York, 1975.</ol>