TY - RPRT TI - Structural properties of "dun-ti-stone" wall construction sponsored by the W. E. Dunn Manufacturing Company 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 22 DO - 10.6028/NBS.BMS.22 ER -