00000cam a22000004a 4500 UP-99796217610352746 Buklod 20120620143337.0 m |q d | ta 120620s1998 xx r |000 u|eng d 0673994163 (iLib)UPD-00184907302 Eng Wark, Kenneth Air pollution its origin and control Kenneth Wark, Cecil F. Warner, Wayne T. Davis. 3rd ed. Menlo Park, California Addison-Wesley 1998. 573 p. Air-Pollution. United States. Clean Air Act Amendments of 1990. Davis, Wayne T. Warner, Cecil F. Book UPD NCTS Book