APA (7th ed.) Citation

Williamson, M., Dommett, L., & Zaliouk, Y. (1980). Piano concerto no. 3 in Eb. [Selbstverlag Williamson?].

Chicago Style (17th ed.) Citation

Williamson, Malcolm, Leonard Dommett, and Yuval Zaliouk. Piano Concerto No. 3 in Eb. [Philadelphia, PA?]: [Selbstverlag Williamson?], 1980.

MLA (9th ed.) Citation

Williamson, Malcolm, et al. Piano Concerto No. 3 in Eb. [Selbstverlag Williamson?], 1980.