N=P P=01610 MBB ref=MBB Axel Frederic Cronstadt Gustav von Engetron João Jacinto de Magalhães An essay towards a system of Mineralogy Mineralogia yING London Charles Dilly 1788 y17 y178 AXEL FREDERIC CRONSTADT GUSTAV VON ENGETRON JOAO JACINTO DE MAGALHAES AN ESSAY TOWARDS A SYSTEM OF MINERALOGY MINERALOGIA LONDON CHARLES DILLY LONDRES Londres anyInglaterra anyReinoUnido anyEuropa