The Sixth Grandfather: Black Elk's teachings given to John G. Neihardt John Gneisenau Neihardt, 1863-1950 Black Elk and Raymond J. DeMallie 1985
The slave coast of West Africa, 1550-1750: the impact of the Atlantic slave trade on an African society Robin Law 1991
The slave trade and culture in the Bight of Biafra: an African society in the Atlantic world G. Ugo Nwokeji 2010
The social and economic history of the Roman Empire, Vol. 1 Michael Ivanovitch Rostovtzeff and P. M. Fraser 1998
The social and economic history of the Roman Empire, Vol. 2 Michael Ivanovitch Rostovtzeff and P. M. Fraser 1998
The social status of the professional musician from the Middle Ages to the 19th century Walter Salmen, Herbert Kaufman and Barbara Reisner c1983