Explorers in Tibet. Frome: Padding Press Ltd, p.103 Isserman, Maurice; Weaver, Stewart; Molenaar, Dee (2008). Fallen Giants: A History of Himalayan Mountaineering
Scott Squires, Phil Tippett, Julie Weaver, The Making of Dragonheart (DVD), Universal Studios, 2009 Plume, Kenneth, "Rise and Fall (and Rise) of a Hollywood
Publishing, LLC, 2014, p. 76. Jones, Kenneth (19 April 2004). "Victory Gardens Keeps Trying: Joanna Glass With Fritz Weaver Extends Two Weeks". Playbill. Archived
"Bernard Berenson" in Dizionario Biografico degli Italiani, 34. William Weaver (1997) A Legacy of Excellence: The Story of Villa I Tatti Simon Gray's play