Não informado. (1938). Building materials and structures report. U.S. Department of Commerce, National Bureau of Standards.
Chicago-Zitierstil (17. Ausg.)Não informado. Building Materials and Structures Report. Washington: U.S. Department of Commerce, National Bureau of Standards, 1938.
MLA-Zitierstil (8. Ausg.)Não informado. Building Materials and Structures Report. U.S. Department of Commerce, National Bureau of Standards, 1938.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.