Riegger, W., Riegger, W., Kroll, W., Kouguell, A., Covell, J. T., & Kroll Quartet. (1961). Trio for piano, violin and cello [op. 1] String quartet no. 2, op. 43. Columbia ML 5589.

Riegger, Wallingford, Wallingford Riegger, William Kroll, Alexander Kouguell, John Thomas Covell, and Kroll Quartet. Trio for Piano, Violin and Cello [op. 1] String Quartet No. 2, Op. 43. S.l: Columbia ML 5589, 1961.

Riegger, Wallingford, et al. Trio for Piano, Violin and Cello [op. 1] String Quartet No. 2, Op. 43. Columbia ML 5589, 1961.