TY  - RPRT
TI  - Structural properties of conventional wood-frame constructions for walls, partitions, floors, and roofs 
AU  - Heck, George E
PY  - 1939
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS BMS 25
DO  - 10.6028/NBS.BMS.25
ER  -