"id","author_first1","author_last1","title","year","type","university","place","keyword0","keyword1","keyword2","keyword3","keyword4","keyword5" "1184","Thomas B.","Stevenson","Kinship, Stratification, and Mobility: Social Change in a Yemeni Highlands Town","1981","dissertation","Wayne State University","Ann Arbor","Amran","History","Kinship","Marriage","Migration","PDRY-USSR"