@book{2193,
	author = {Newell, Kenneth W and World Health Organization},
	title = {Health by the people / },
	publisher = {WHO,},
	year = {1975.},
	address = {Geneva :},
	url = {https://apps.who.int/iris/bitstream/handle/10665/40514/9241560428_eng.pdf?sequence=1&isAllowed=y}
}