“1993 Report of the American Veterinary Medical Association Panel on Euthanasia”, published in the Journal of the American Veterinary Medical Association, Vol. 202, No. 2, pages 229-247.
Guide to the Care and Use of Experimental Animals, published by the Canadian Council on Animal Care, Vol. 1 (1993) and Vol. 2 (1984).
Guidelines for euthanasia of domestic animals by firearms, published by the Canadian Veterinary Medical Association, December 1991.