REFERENCES

AVMA. 2008. Food Supply Veterinary Medicine. Available online at http://www.avma.org/fsvm/maps/default.asp#us_animal_vet.

Honeyman M., and M. Duffy. 2006. Iowa’s Changing Swine Industry. AS Leaflet R 2158 in Iowa State University Animal Industry Report 2006. Ames: Iowa State University Department of Animal Science.

National Atlas of the United States. 2011. Population Change and Distribution: 1990 to 2000. Available online at http://www.nationalatlas.gov/articles/people/a_popchange.html#five.



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