APA引文
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引文
Clark, Mary Morris. The Tonal System of Igbo. Foris, 1990.
警告:這些引文格式不一定是100%准確.