Betts, Raymond Frederick. The problem of French colonial doctrine, 1890-1914 assimilation and association / [microform] : by Raymond Frederick Betts. - Ann Arbor, Mich. : University Microfilms International, 1960. - 1 microfilm reel : positive ; 35 mm. Thesis (Ph.D.) - Columbia University, 1958. Subjects--Topical Terms: Native races--France. Subjects--Geographic Terms: France--Colonies--Administration.