@Book{OL14856970M,
    title: {Official descriptive and illustrated catalogue},
    author: {Great Exhibition (1851 London, England)},
    publisher: {Spicer Brothers, Wholesale Stationers; W. Clowes and Sons, Printers; Contractors to the Royal Commission},
    year: {1851},
    place: {London},
}

@Book{OL7039068M,
    title: {A book of images},
    author: {W. T. Horton},
    publisher: {The Unicorn press},
    year: {1898},
    place: {London},
}

@Book{OL6652121M,
    title: {Heraldry and floral forms as used in decoration},
    author: {Herbert Cole},
    publisher: {J.M. Dent \& Sons ltd.},
    year: {1922},
    place: {London \&},
}

@Author{OL830910A,
    name: {Herbert Cole},
    birth_date: {1867}
    , death_date: {1930}
}