63 books
Etude Volume 18, No. 7
Etude Volume 11, No. 1
Etude Volume 13, No. 6
Etude Volume 9, No. 10
Etude Volume 10, No. 9
Etude Volume 25
Etude Volume 14, No. 10
Etude Volume 12, No. 10
Etude Volume 13, No. 8
Etude Volume 14, No. 8
Etude; The Music Magazine Volume 39
Etude Volume 31, No. 4
Etude Volume 27, No. 5
Etude Volume 13, No. 1
Etude Volume 9, No. 1
Etude Volume 11, No. 3
Etude Volume 14, No. 5
Etude Volume 32, No. 5
Etude Volume 24, No. 9
Etude Volume 14, No. 6
Etude Volume 10, No. 8
Etude Volume 30, No. 9
Etude Volume 27, No. 2
The Etude Volume 3