Risk and reason : risk assessment in relation to environmental mutagens and carcinogens / edit. Per Oftedal, Anton Brogger : proceedings of a satellite symposium to the 4th international conference on..., held in Oslo, Norway, June 21-22, 1985. New York : Liss, 1986. xv, 189 s.ISBN 0-8451-5058-8 [1, z toho voľných 1]