@book{https://resolver.caltech.edu/CaltechAUTHORS:20090806-090846509,
    title = "An informal history of the California Institute of Technology : [pictorial highlights, 1891-1966]",
    year = "1966",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20090806-090846509",
    id = "record"
}


@book{https://resolver.caltech.edu/CaltechAUTHORS:20120222-092546689,
    title = "Dedication of the Palomar Observatory and the Hale Telescope",
    year = "1948",
    url = "https://resolver.caltech.edu/CaltechAUTHORS:20120222-092546689",
    id = "record"
}