Esser, S. J. (1964). De uma-taal (West midden-Celebes) spraakkunstige schets en teksten. Matinus Nijhoff.
Chicago Style (17th ed.) CitationEsser, Samuel Jonathan. De Uma-taal (West Midden-Celebes) Spraakkunstige Schets En Teksten. 's-Gravenhage: Matinus Nijhoff, 1964.
MLA (9th ed.) CitationEsser, Samuel Jonathan. De Uma-taal (West Midden-Celebes) Spraakkunstige Schets En Teksten. Matinus Nijhoff, 1964.
Warning: These citations may not always be 100% accurate.