Lee: 40 Melodic and Progressive Etudes, Op. 31

Schott

Lee: 40 Melodious and Progressive Studies, Op. 31 - Volume 2 (Nos. 23-40)

International Music Co.

Lee: 40 Melodic Studies, Op. 31 - Volume 1

Carl Fischer

Lee: Method for Cello

including Melodious and Progressive Etudes, Op. 31 - Book 1

G. Schirmer

Lee: 40 Melodic and Progressive Etudes, Op. 31 - Book 2 (Nos. 23-40)