TY  - RPRT
TI  - Structural properties of "twachtman" constructions for walls and floors sponsored by Connecticut Pre-Cast Buildings Corporation 
AU  - Whittemore, Herbert L
AU  - Stang, Ambrose H
AU  - Parsons, Douglas E
PY  - 1939
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS BMS 20
DO  - 10.6028/NBS.BMS.20
ER  -