TY - BOOK AU - Fishbein,L AU - Falk,H L AU - Flamm,W G AU - Hewson,Wendell E [series editor] AU - Lee,Douglas H K [series editor] TI - Chemical mutagens U1 - 573.229 2 PY - 1970/// CY - New York PB - Academic Press KW - Biological systems-Environmental effects KW - Chemical mutagens ER -