@book{1552,
	author = {Symposium on Health and Disease in Tribal Societies (1976 : September).},
	title = {Health and disease in tribal societies : proceedings [of the] Symposium, London, 28-30 September 1976.},
	publisher = {elsevier,},
	year = {1977.},
	series = {(Ciba Foundation symposium ; no. 49, new series)},
	address = {Amsterdam : }
}