@book{14892,
	author = {Preussman, R. and World Health Organization.},
	title = {Environmental carcinogens : selected methods of analysis, vol. 1: analysis of volatile nitrosamines in food.},
	publisher = {International Agency for Research on Cancer,},
	year = {1978.},
	series = {IARC scientific publications ; no. 18.},
	address = {Lyon : }
}