- ^ Walker (1983), p. xvii.
- ^ Walker (1983), p. xi.
- ^ Munro (1987), p. 161.
- ^ Walker (1983), p. 25.
- ^ Walker (1983), p. 85.
- ^ Walker (1983), p. 93.
- ^ Walker (1983), pp. 61-2.
- ^ Walker (1983), p. 8.
- ^ Walker (1983), p. 128.
- ^ Walker (1983), p. 145.
- ^ Walker (1983), p. 139.
- ^ Walker (1983), p. 154.
- ^ Walker (1983), p. 155.
- ^ Walker (1983), p. 213.
- ^ a b Walker (1983), p. 233.
- ^ Walker (1983), p. 232.
- ^ Walker (1983), p. 235.
- ^ Walker (1983), p. 236.
- ^ a b Walker (1983), p. 237.
- ^ a b Walker (1983), p. 238.
- ^ Walker (1983), p. 244.
- ^ Walker (1983), p. 245.
- ^ Walker (1983), p. 229.
- ^ Walker (1983), p. 291.
- ^ Walker (1983), p. 272.
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