TY - RPRT TI - Technical Activities 1981 Office of Recycled Materials AU - Becker, Donald A AU - Berke, Joseph G AU - Domalski, Eugene S AU - Matthews, Rosalie T AU - Yakowitz, Harvey PY - 1981 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS IR 81-2417 DO - 10.6028/NBS.IR.81-2417 ER -