(Belter/Mezzo-Soprano (45 Songs)). By Stephen Sondheim (1930-). Edited by Richard Walters. For Mezzo-Soprano, Piano Accompaniment. Vocal Collection. 334 pages. Published by Hal Leonard

(Mezzo-Soprano/Alto/Belte r Book Only). By Various. Edited by Richard Walters. Vocal Collection. Softcover. 228 pages

Mezzo-Soprano/Belter. Composed by Various. Edited by Richard Walters. Vocal Collection. 248 pages. Published by Hal Leonard

Edited by Richard Walters. Songbook for mezzo soprano voice and piano. 280 pages. Published by Hal Leonard.

Composed by Various. Edited by Richard Walters. Boosey and Hawkes Voice. Opera. Softcover. 216 pages. Published by Boosey and Hawkes