TY  - RPRT
TI  - "Old growth Douglas fir, Sitka spruce, and western hemlock standard stock doors (fourth edition)" 
PY  - 1948
PB  - National Bureau of Standards
CY  - "Gaithersburg, MD
SN  - NBS CS 73-48
DO  - 10.6028/NBS.CS.73-48
ER  -