APA (7th ed.) Citation

Longy-Miquelle, R. (1925). Principles of musical theory. E.C. Schirmer music co..

Chicago Style (17th ed.) Citation

Longy-Miquelle, Renee. Principles of Musical Theory. Boston: E.C. Schirmer music co., 1925.

MLA (9th ed.) Citation

Longy-Miquelle, Renee. Principles of Musical Theory. E.C. Schirmer music co., 1925.

Warning: These citations may not always be 100% accurate.