@misc{calteches266,
         address = {Pasadena, CA},
       publisher = {California Institute of Technology},
            year = {1967},
          number = {9},
          editor = {Edward Hutchings, Jr.},
           title = {Engineering and Science, Volume 30:9, June 1967},
           month = {June},
         journal = {Engineering and Science},
          volume = {30},
             url = {https://resolver.caltech.edu/CaltechES:30.9.0}
}