MLA

Aikin, William A. The Voice: Its Physiology and Cultivation. London: Macmillan and Co, 1900.

APA

Aikin, W. A. (1900). The Voice: Its Physiology and Cultivation. London: Macmillan and Co.

Chicago

Aikin, William A. The Voice: Its Physiology and Cultivation. London: Macmillan and Co, 1900.