Cust, R. N. (1975). A sketch of the modern languages of the East Indies. Accompanied by two language-maps [microform]. Photoduplication Service.
Chicago-referens (17:e uppl.)Cust, Robert Needhan. A Sketch of the Modern Languages of the East Indies. Accompanied by Two Language-maps [microform]. Quezon City: Photoduplication Service, 1975.
MLA-referens (9:e uppl.)Cust, Robert Needhan. A Sketch of the Modern Languages of the East Indies. Accompanied by Two Language-maps [microform]. Photoduplication Service, 1975.
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