SCHULLER ROBERT M. (1983). TOUGH MINDED FAITH FOR TENDER HEARTED PEOPLE. BANTAM BOOKS.
Lua i Stíl Chicago (17ú heag.)SCHULLER ROBERT M. TOUGH MINDED FAITH FOR TENDER HEARTED PEOPLE. NEW YORK: BANTAM BOOKS, 1983.
Lua MLA (9ú heag.)SCHULLER ROBERT M. TOUGH MINDED FAITH FOR TENDER HEARTED PEOPLE. BANTAM BOOKS, 1983.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.