@misc{calteches639,
          volume = {11},
         journal = {Engineering and Science},
           month = {July},
          editor = {Harry K. Farrar},
           title = {Engineering and Science, Volume 11:7, July 1948},
            year = {1948},
       publisher = {California Institute of Technology},
          number = {7},
         address = {Pasadena, CA},
             url = {https://resolver.caltech.edu/CaltechES:11.7.0}
}