Tham khảo Săn thủy cầm

    • Waterfowl Ecology and Management (1994) by Guy A. Baldassarre, Eric G. Bolen, D. Andrew Saunders, pp. 3–6.
    • Sanderson, Glen C. and Frank C. Bellrose. 1986. A Review of the Problem of Lead Poisoning trong nướcfowl. Illinois Natural History Survey, Champaign, Illinois. Special Publication 4. 34pp. full report from scholar.google.com (cache)
    • A.M. Scheuhammer and S. L. Norris. 1996. "The ecotoxicology of lead shot and lead fishing weights" Ecotoxicology Vol. 5 Number 5 pp. 279–295