(1872). Catalogue of a valuable collection of books, consisting chiefly of works on natural history, being peculiarly rich in ornithology -- the whole being a portion of the private library of the late John Cassin -- to be sold -- April 23rd, 1872 --. [Philadelphia]: W.B. Selheimer, printer.

Catalogue of a Valuable Collection of Books, Consisting Chiefly of Works On Natural History, Being Peculiarly Rich in Ornithology -- the Whole Being a Portion of the Private Library of the Late John Cassin -- to Be Sold -- April 23rd, 1872 --. [Philadelphia]: W.B. Selheimer, printer, 1872.

Catalogue of a Valuable Collection of Books, Consisting Chiefly of Works On Natural History, Being Peculiarly Rich in Ornithology -- the Whole Being a Portion of the Private Library of the Late John Cassin -- to Be Sold -- April 23rd, 1872 --. [Philadelphia]: W.B. Selheimer, printer, 1872.