Maier Guy & Bradshaw, H. (1948). Thinking fingers: Essential exercises for the development of pianistic control and facility in essential exercises for the development of pianistic control and facility in five-finger patterns, thirds, sixths, and octaves. Mills Music.

Maier Guy and Herbert Bradshaw. Thinking Fingers: Essential Exercises for the Development of Pianistic Control and Facility in Essential Exercises for the Development of Pianistic Control and Facility in Five-finger Patterns, Thirds, Sixths, and Octaves. New York: Mills Music, 1948.

Maier Guy and Herbert Bradshaw. Thinking Fingers: Essential Exercises for the Development of Pianistic Control and Facility in Essential Exercises for the Development of Pianistic Control and Facility in Five-finger Patterns, Thirds, Sixths, and Octaves. Mills Music, 1948.