Institution Press, Washington and London. Monteiro A. (ed.) (2007). The Cone Collector 1 (页面存档备份,存于互联网档案馆): 1-28. Taylor, J. D.; Kantor, Yu. I.; Sysoev, A. V
2007-07-18. (原始内容存档于2008-02-15). Wilson, James Robert, A collector's guide to rock, mineral & fossil localities of Utah, Utah Geological Survey: 1–22, 1995