1. Code of Federal Regulations, Title 21, Parts 10 to 129. Revised April 1, 1973, Office of the Federal Register, National Archives and Records Services, G.S.A., Washington, D.C.
2. Food and Drug Administration, Contracts 70–204 and 71–69, University of Illinois, Department of Veterinary Pharmacology, School of Veterinary Medicine, Urbana, Illinois, 1970–1974.
3. Food and Drug Administration, Contract 71–306, University of Missouri, School of Veterinary Medicine, Columbia, Missouri, 1971–1974.
4. Safety of environmental chemicals: The need and the challenge;Golberg;Food Cosmet. Toxicol.,1972
5. The impact of antibiotic drugs and their residues;Huber;Adv. Vet. Sci. Comp. Med.,1971