awareness of organ harvesting. The Western Howl. 2017-03-01 [2021-10-22]. (原始内容存档于2021-10-22). Docu film exposes alleged Chinese prisoners’ organs being
NickPress.com. [2013年1月25日]. (原始内容存档于2013年10月21日). Ryan Potter Celebrates Howl-O-Ween at Great Wolf Lodge - Big Brothers Big Sisters. bbbs.org. [2019-03-29]
2010-08-12 [2015-02-25]. (原始内容存档于2021-01-19). Ganahl, Jane. Howl's Cast and Crew On the Road to Sundance. Vanity Fair. 2010-01-23 [2015-02-25]. (原始内容存档于2014-01-04)