Tragic Westerns: A Critical Study. McFarland. ISBN 978-0-7864-6133-2 Weddle, David (1994). If They Move ... Kill 'Em! The Life and Times of Sam Peckipah
^ Weddle (1995), pp. 137, 150, 152. ^ a b Weddle (1995), p. 155. ^ Weddle (1995), p. 156. ^ Weddle (1995), p. 161. ^ Weddle (1995), p. 169. ^ Weddle (1995)
^ Blair & Johnson 1987, pp. 147–51. ^ Falikowski & Mills 2022, p. 98; Weddle 2011, pp. 383–8, 36. Informal logic and the eductive-inductive distinction;