TY  - GEN
AU  - Mathey, Robert G
AU  - Rossiter, Walter J
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1977-01-01 05:01:00
DO  - https://doi.org/10.6028/NBS.IR.77-1256
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1977
TI  - Properties of 21 year old coal-tar pitch roofing membranes ::a comparison with the NBS preliminary performance criteria
ER  -