APA citiranje
Clark, M. M. (1990). The tonal system of Igbo. Foris.
Chicago Style (17th ed.) Citation
Clark, Mary Morris. The Tonal System of Igbo. Dordrecht ; Providence, RI: Foris, 1990.
MLA citiranje
Clark, Mary Morris. The Tonal System of Igbo. Foris, 1990.
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