TY - BOOK AU - Richards,Ira S. TI - Principles and practice of toxicology in public health SN - 9780763738235 (pbk.) AV - RA 1211 .R52 2008 PY - 2008/// CY - Sudbury, Mass. PB - Jones and Bartlett KW - Toxicology KW - Health Policy KW - Public Health Practice KW - Risk Assessment ER -