por Murray, Haydn [editor] | Bundy, Wayne [editor] | Harvey, Colin [editor] | Murray, H. H [prologuista] | Clay Minerals Society.
por Boyd, Stephen A [colaborador] | Mermut, Ahmet R [editor] | Clay Minerals Society.
por Nagy, Kathryn L [editor] | Blum, Alex E [colaborador] | Clay Minerals Society.