Cita APA (7th ed.)

Goetschius, P. (1938). Exercise in elementary counterpoint. G. Schirmer, Inc..

Cita Chicago (17th ed.)

Goetschius, Percy. Exercise in Elementary Counterpoint. New York: G. Schirmer, Inc., 1938.

Cita MLA (9th ed.)

Goetschius, Percy. Exercise in Elementary Counterpoint. G. Schirmer, Inc., 1938.