(5 Original Duets For 1 Piano/4 Hands). By Eugenie R. Rocherolle, Phillip Keveren, Sondra Clark, and Wendy Stevens. Educational Piano Library. Intermediate. Softcover. 72 pages. Published by Hal Leonard

By Sondra Clark. (1 Piano, 4 Hands). piano. Level: Intermediate. Music book. Published by Neil A. Kjos Music Company.

Hal Leonard Student Piano Library Intermediate Composer Showcase. By Sondra Clark. Educational Piano Library. Softcover. 32 pages. Published by Hal Leonard.