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By "Norton, Horace W."
Effects of ingested lead-iron shot on mallards / Glen C. Sanderson, Horace W. Norton, Sarah S. Hurley.
By: Sanderson, Glen C. - Hurley, Sarah S. - Norton, Horace W. - Illinois.
Publication info: Champaign, Ill. :Illinois Natural History Survey,1981.
Contributed by: University of Illinois Urbana Champaign