296,971 GUIDELINES Guidelines for the study of dietary intakes of chemical contaminants : [GEMS : Global Environmental Moinitoring System / [prep, under the joint sponsorship of the United Nations Environment Programme, the Food and Agriculture Organization fo the United Nations, and the World Health Organization]. — Geneva : WHO, 1985. — [2], 102 s. ; 30 cm (Offset Publication / WHO ; nr 87) ISBN 92-4-170087-4