TY  - RPRT
TI  - Structural properties of a wall construction of "knap concrete wall units" sponsored by Knap America Inc. 
AU  - Whittemore, Herbert L
AU  - Stang, Ambrose H
AU  - Fishburn, Cyrus C
PY  - 1940
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS BMS 40
DO  - 10.6028/NBS.BMS.40
ER  -