APA

Goetschius P., . (1941). The material used in musical composition: a system of harmony designed originally for the use in the English harmony classes of the Conservatory of Music at Stuttgart. New York: G. Schirmer.

Chicago

Goetschius Percy, . 1941. The material used in musical composition: a system of harmony designed originally for the use in the English harmony classes of the Conservatory of Music at Stuttgart. New York: G. Schirmer.

Harvard

Goetschius P., . (1941). The material used in musical composition: a system of harmony designed originally for the use in the English harmony classes of the Conservatory of Music at Stuttgart. New York: G. Schirmer.

MLA

Goetschius Percy, . The material used in musical composition: a system of harmony designed originally for the use in the English harmony classes of the Conservatory of Music at Stuttgart. New York: G. Schirmer. 1941.