References

BhPr, 1, 8, 79.1
  sauvarṇaṃ rājataṃ tāmramāyasaṃ taccaturvidham /Context
BhPr, 1, 8, 88.1
  kṣetrabhedena vijñeyaṃ śivavīryaṃ caturvidham /Context
BhPr, 1, 8, 116.1
  viprakṣatriyaviṭśūdrabhedāt tatsyāccaturvidham /Context
BhPr, 1, 8, 118.1
  pinākaṃ darduraṃ nāgaṃ vajraṃ ceti caturvidham /Context
BhPr, 1, 8, 200.2
  vaiśyaḥ pīto'sitaḥ śūdro viṣa uktaścaturvidhaḥ //Context