Neuroptera Austriaca.
Wien: Druck and Verlag von Carl Gerold's Sohn, 1857. Octavo, folding plates, signature, publisher's worn boards and spine. Text in German. More
Wien: Druck and Verlag von Carl Gerold's Sohn, 1857. Octavo, folding plates, signature, publisher's worn boards and spine. Text in German. More