@book{https://resolver.caltech.edu/CaltechBOOK:1990.001,
    title = "The Amos Gager Throop Collections: a guide to the papers in the Archives of the California Institute of Technology and the Chicago Historical Society",
    year = "1990",
    url = "https://resolver.caltech.edu/CaltechBOOK:1990.001",
    id = "record"
}


@book{https://resolver.caltech.edu/CaltechBOOK:1986.002,
    title = "The Frank J. Malina Collection at the California Institute of Technology : guide to a microfiche edition",
    year = "1986",
    url = "https://resolver.caltech.edu/CaltechBOOK:1986.002",
    id = "record"
}


@book{https://resolver.caltech.edu/CaltechBOOK:1981.002,
    title = "Caltech's Throop Hall",
    year = "1981",
    url = "https://resolver.caltech.edu/CaltechBOOK:1981.002",
    id = "record"
}