International Geological Congress : report of the eighteenth session, Great Britain, 1948. Part XIII, Proceedings of section M: Other subjects also including meetings on the geology and mineralogy of clays - International Geological Congress 1948 : Londýn, Anglie); Shackleton, R. M. (London : [s.n.], 1952)
Text anglicky, francouzsky nebo italsky
Keywords: jílové minerály; jíly; mineralogie; regionální geologie; clay minerals; clay; mineralogy; regional geology; sborníky konferencí; proceedings of conferences