TY - RPRT TI - Nonmetallic coatings for concrete reinforcing bars AU - Clifton, James R AU - Beeghly, Hugh F AU - Mathley, Robert G PY - 1975 PB - National Bureau of Standards CY - Gaithersburg, MD SN - NBS BSS 65 DO - 10.6028/NBS.BSS.65 ER -