APA (7th ed.) Citation

Watkins, J. G. (1942). Objective measurement of instrumental performance. Teachers College.

Chicago Style (17th ed.) Citation

Watkins, John G. Objective Measurement of Instrumental Performance. New York: Teachers College, 1942.

MLA (9th ed.) Citation

Watkins, John G. Objective Measurement of Instrumental Performance. Teachers College, 1942.

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