TY  - RPRT
TI  - Letter Circular 502B: the durability of building papers and fiberboards relative to low-cost housing
PY  - 1937
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 502B
DO  - 10.6028/NBS.LCIRC.502B
ER  -