Serjeant, R.B. South Arabia. Pages 221-247 in C.A.O. van Nieuwenhuijze (ed.), Commoners, Climbers and Notables. A Sampler of Studies on Social Ranking in the Middle East. [‘This the English original of a lecture in French delivered at the Sorbonne in 1967, with subsequent revisions and additions. The French version was published in /Arabica/, 1967 (xiv, iv, 284-97) under the title of “Société et gouvernement en Arabie du s. Leiden: Brill, 1977.