1. Kin Groups and Social Structure;R Keesing,1975
2. Incest and identity: a critique and theory on the subject of exogamy and incest prohibition;R Wagner;Man,1972
3. Systems of consanguinity and affinity of the human family;L H Morgan,1871
4. Primitive Culture: Researches Into the Development of Mythology, Philosophy, Religion, Art, and Custom;E Tylor,1871
5. Ancient Society;LH Morgan,1877