APA (7th ed.) Citation
Thompson, J. (1940). John Thompson's modern course for the piano: The fourth grade book. Something new every lesson. The Willis Music.
Chicago Style (17th ed.) Citation
Thompson, John. John Thompson's Modern Course for the Piano: The Fourth Grade Book. Something New Every Lesson. Florence, Kentucky: The Willis Music, 1940.
MLA (9th ed.) Citation
Thompson, John. John Thompson's Modern Course for the Piano: The Fourth Grade Book. Something New Every Lesson. The Willis Music, 1940.
Warning: These citations may not always be 100% accurate.