APA (7th ed.) Citation

Gehrkens, K. W. (2006). Music notation and terminology by Karl Wilkins Gehrkens. Project Gutenberg Literary Archive Foundation.

Chicago Style (17th ed.) Citation

Gehrkens, Karl Wilson. Music Notation and Terminology by Karl Wilkins Gehrkens. Salt Lake City: Project Gutenberg Literary Archive Foundation, 2006.

MLA (9th ed.) Citation

Gehrkens, Karl Wilson. Music Notation and Terminology by Karl Wilkins Gehrkens. Project Gutenberg Literary Archive Foundation, 2006.

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