Shank, M. (1993). Succeeding with difficult students: Workbook. Lee Canter & Associates.
Lua i Stíl Chicago (17ú heag.)Shank, Marcia. Succeeding with Difficult Students: Workbook. California, U.S.: Lee Canter & Associates, 1993.
Lua MLA (8ú heag.)Shank, Marcia. Succeeding with Difficult Students: Workbook. Lee Canter & Associates, 1993.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.