Survey of copper and zinc in food: the fifth report of the Steering Group on Food Surveillance, the Working Party on the Monitoring of Foodstuffs for Heavy Metals - London: H. M. S. O., 1981. - iv,50pages ; 25cm. - Food surveillance paper no.5 . ISBN: 0112411991 Subjects--Topical Terms: Food contamination--Great Britain.Food--Copper content.Food--Zinc content.