Franklin

MLA

Stanley, Douglas, Stanley Sylvester A Watkins, and Alma Stanley. The Science of Voice : an Application of the Laws of Acoustics, Anatomy, Physiology and Psychology to the Problems of Vocal Technic, Including Sections On Music and Interpretation, Acoustics, Advice to Those Interested In the Radio and Talking Movies, and Descriptions of Original Researches. 3d ed. (rev. and enl.). New York: C. Fischer, inc., 1939.

APA

Stanley, D., Watkins, S. Sylvester A, & Stanley, A. (1939). The science of voice : an application of the laws of acoustics, anatomy, physiology and psychology to the problems of vocal technic, including sections on music and interpretation, acoustics, advice to those interested in the radio and talking movies, and descriptions of original researches. 3d ed. (rev. and enl.). New York: C. Fischer, inc.

Chicago

Stanley, Douglas, Stanley Sylvester A Watkins, and Alma Stanley. The Science of Voice: An Application of the Laws of Acoustics, Anatomy, Physiology and Psychology to the Problems of Vocal Technic, Including Sections On Music and Interpretation, Acoustics, Advice to Those Interested In the Radio and Talking Movies, and Descriptions of Original Researches. 3d ed. (rev. and enl.). New York: C. Fischer, inc., 1939.