TY - GEN AU - Rossiter, Walter J AU - Cullen, William C AU - Mathey, Robert G C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1985-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.85-3239 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1985 TI - Roof management programs: ER -