Cita APA (7a ed.)

Goetschius, P. (1931). The theory and practice of tone-relations: : an elementary course of harmony, with emphasis upon the element of melody (Completely rewritten and enlarged.). G. Schirmer.

Cita Chicago Style (17a ed.)

Goetschius, Percy. The Theory and Practice of Tone-relations: : An Elementary Course of Harmony, with Emphasis upon the Element of Melody. Completely rewritten and enlarged. New York: G. Schirmer, 1931.

Cita MLA (9a ed.)

Goetschius, Percy. The Theory and Practice of Tone-relations: : An Elementary Course of Harmony, with Emphasis upon the Element of Melody. Completely rewritten and enlarged. G. Schirmer, 1931.