APA (7e ed.) Bronvermelding

Cust, R. N. (1975). A sketch of the modern languages of the East Indies. Accompanied by two language-maps [microform]. Photoduplication Service.

Chicago (17e ed.) Bronvermelding

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 (9e ed.) Bronvermelding

Cust, Robert Needhan. A Sketch of the Modern Languages of the East Indies. Accompanied by Two Language-maps [microform]. Photoduplication Service, 1975.