TY - BOOK ED - National Research Council (U.S.). TI - Protecting building occupants and operations from biological and chemical airborne threats: a framework for decision making SN - 9780309109550 (pbk) U1 - 658.477 22 PY - 2007/// CY - Washington, D.C. PB - National Academies Press KW - Biological weapons KW - Safety measures KW - Chemical agents (Munitions) KW - Biological warfare KW - Chemical warfare N1 - Includes bibliographical references (p. 112-116); Also available in Open Book format via the National Academies Press home page ER -