Referencia MAWE, John. FAMILIAR LESSONS ON MINERALOGY AND GEOLOGY: EXPLAINING THE EASIEST METHODS OF DISCRIMINATING MINERALS, AND THE EARTHY SUBSTANCES, COMMONLY CALLED ROCKS, WHICH COMPOSE THE PRIMITIVE, SECONDARY, FLOETZ OR FLAT, AND ALLUVIAL FORMATIONS: TO WHICH IS ADDED, A DESCRIPTION OF THE LAPIDARIES' APPARATUS, ETC. WITH ENGRAVINGS AND COLOURED PLATE. Londres, Inglaterra: Longman, Hurst, Rees, Orme, and Brown, 1819.