@book{958,
	author = {International Symposium on Health Aspects of the International Movement of Animals (2nd : 1971 : Mexico).},
	title = {Summary and working papers.},
	publisher = {Pan American Health Organization,},
	year = {1972.},
	series = {(PAHO scientific publication ; no. 235)},
	address = {Washington, D.C. : }
}