TY - BOOK ED - US. House. Committee on government operations, HCGO. Environment, energy, and natural resources subcommittee TI - Toxic substances control : still waiting after all these years. Hearing SN - 0160401135 PY - 1993/// CY - Washington, DC , USGPO KW - USA; official publication; EPA; environment; protection; toxic agents; toxins; chemicals; pollution KW - safety ER -