TY  - RPRT
TI  - Letter Circular 514: dampness in masonry walls above grade (replaces Letter Circular 391)
PY  - 1938
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - LCIRC 514
DO  - 10.6028/NBS.LCIRC.514
ER  -