ZOOLOGICAL
'Mollusca & shells' (1852) by Augustus Addison Gould (1805–1866), 'Die Cephalopoden' (1910–1915) by Carl Chun (1852–1914 ) and 'Résultats des Campagnes Scientifiques' (1889) by Albert I, Prince of Monaco (1848–1922)
ZOOLOGICAL
'Mollusca & shells' (1852) by Augustus Addison Gould (1805–1866), 'Die Cephalopoden' (1910–1915) by Carl Chun (1852–1914 )and 'Résultats des Campagnes Scientifiques' (1889) by Albert I, Prince of Monaco (1848–1922)