Lawrence Waddell, Thomas Holdich, Albert de Lacouperie, and Osbert Howarth, 1911 Encyclopædia Britannica (1911)
“ The sedentary population of Tibet has to a greater or less degree the same physical traits as the Dokpa, but as one approaches China, India or the border lands generally, one observes that the admixture of foreign blood has considerably modified the primitive type. Among the customs of the Tibetans, perhaps the most peculiar is polyandry, the brothers in a family having one wife in common. Monogamy, however, seems to be the rule among the pastoral tribes, and polygamy is not unknown in Tibet, especially in the eastern parts of the country. ”
