@book{2805,
	author = {Stallones R.A. and PAHO/WHO Lectures on the Biomedical Sciences (4th : 1971 : Washington).},
	title = {Environment, ecology, and epidemiology.},
	publisher = {Pan American Health Organization,},
	year = {1971},
	series = {(PAHO scientific publication; no. 231).},
	address = {Washingto :}
}