@misc{1193026,
  author = {Herbert L Whittemore and Ambrose H Stang and Douglas E Parsons},
  title = {Structural properties of a precast joist concrete floor construction sponsored by the Portland Cement Association:},
  year = {1940},
  month = {1940-01-01 05:01:00},
  publisher = {, National Institute of Standards and Technology, Gaithersburg, MD},
  doi = {https://doi.org/10.6028/NBS.BMS.62},
  language = {en},
}