> [[littleton]]. Review of [[ross-a-1967]]. *American Anthropologist* 70, 1968. [pdf](https://anthrosource.onlinelibrary.wiley.com/doi/abs/10.1525/aa.1968.70.3.02a00820), [pdf](a/c-littleton1968.pdf) ## Relavance Criticises [[ross-a]] for not taking IE studies into account.