550,586 ASSESSING Assessing the risk of genetin damage / eds. D.J. Brusick [et al] ; United Nations Environment Programme International Comission against Environmental Mutagens and Carcinogens. - Gaborone [etc.] ; Hodder and Stoughton,,[1992]. - 52 s. : il., wykr. , 24 cm ISBN 92-807-1339-6