By Anonymous. Edited by Kenneth Martinson. For 2 violas. This edition: Urtext, Bookstyle Bound. Classical. Level 4 (of 6). Playing score. Text Language: English. 114 pages. Published by Gems Music Publications
(31 Duets That Can Be Played by Any Combination of String Instruments). By Larry Clark. Edited by Doris Gazda. Arranged by Larry Clark. For viola. Compatible Duets for Strings. Part book (softcover). 48 pages. Published by Carl Fischer