A catalogue of upwards of twenty thousand volumes, of the most valuable books ... which will begin to be sold this day, 1780, ... / [electronic resource] by James Robson, ... Catalogues to be had ... at Mr. Dodsley's, ... Mr. Cadell's, ... Mr. Law, ... Mess. Richardson and Urquhart, ... and at the place of sale; also of the booksellers at Oxford and Cambridge; and all the great towns in England