Lawrence, S. J. (1978). Challenges in piano teaching: One to one lessons for the handicapped and others. Workshop music teaching.
Lua i Stíl Chicago (17ú heag.)Lawrence, Sidney J. Challenges in Piano Teaching: One to One Lessons for the Handicapped and Others. New York: Workshop music teaching, 1978.
Lua MLA (9ú heag.)Lawrence, Sidney J. Challenges in Piano Teaching: One to One Lessons for the Handicapped and Others. Workshop music teaching, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.